19973772

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1$

素因数の和:117

約数の個数: 162

約数和(自身を含む): 64547028

約数和(自身を除く): 44573256

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 49, 52, 63, 67, 78, 84, 91, 98, 117, 126, 134, 147, 156, 169, 182, 196, 201, 234, 252, 268, 273, 294, 338, 364, 402, 441, 468, 469, 507, 546, 588, 603, 637, 676, 804, 819, 871, 882, 938, 1014, 1092, 1183, 1206, 1274, 1407, 1521, 1638, 1742, 1764, 1876, 1911, 2028, 2366, 2412, 2548, 2613, 2814, 3042, 3276, 3283, 3484, 3549, 3822, 4221, 4732, 5226, 5628, 5733, 6084, 6097, 6566, 7098, 7644, 7839, 8281, 8442, 9849, 10452, 10647, 11323, 11466, 12194, 13132, 14196, 15678, 16562, 16884, 18291, 19698, 21294, 22646, 22932, 24388, 24843, 29547, 31356, 33124, 33969, 36582, 39396, 42588, 42679, 45292, 49686, 54873, 59094, 67938, 73164, 74529, 79261, 85358, 99372, 101907, 109746, 118188, 128037, 135876, 149058, 158522, 170716, 203814, 219492, 237783, 256074, 298116, 317044, 384111, 407628, 475566, 512148, 554827, 713349, 768222, 951132, 1109654, 1426698, 1536444, 1664481, 2219308, 2853396, 3328962, 4993443, 6657924, 9986886, 19973772]

約数ペア:

[(1, 19973772), (2, 9986886), (3, 6657924), (4, 4993443), (6, 3328962), (7, 2853396), (9, 2219308), (12, 1664481), (13, 1536444), (14, 1426698), (18, 1109654), (21, 951132), (26, 768222), (28, 713349), (36, 554827), (39, 512148), (42, 475566), (49, 407628), (52, 384111), (63, 317044), (67, 298116), (78, 256074), (84, 237783), (91, 219492), (98, 203814), (117, 170716), (126, 158522), (134, 149058), (147, 135876), (156, 128037), (169, 118188), (182, 109746), (196, 101907), (201, 99372), (234, 85358), (252, 79261), (268, 74529), (273, 73164), (294, 67938), (338, 59094), (364, 54873), (402, 49686), (441, 45292), (468, 42679), (469, 42588), (507, 39396), (546, 36582), (588, 33969), (603, 33124), (637, 31356), (676, 29547), (804, 24843), (819, 24388), (871, 22932), (882, 22646), (938, 21294), (1014, 19698), (1092, 18291), (1183, 16884), (1206, 16562), (1274, 15678), (1407, 14196), (1521, 13132), (1638, 12194), (1742, 11466), (1764, 11323), (1876, 10647), (1911, 10452), (2028, 9849), (2366, 8442), (2412, 8281), (2548, 7839), (2613, 7644), (2814, 7098), (3042, 6566), (3276, 6097), (3283, 6084), (3484, 5733), (3549, 5628), (3822, 5226), (4221, 4732)]