21997332

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 68245632

約数和(自身を除く): 46248300

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 53, 54, 61, 63, 81, 84, 106, 108, 122, 126, 159, 162, 183, 189, 212, 243, 244, 252, 318, 324, 366, 371, 378, 427, 477, 486, 549, 567, 636, 732, 742, 756, 854, 954, 972, 1098, 1113, 1134, 1281, 1431, 1484, 1647, 1701, 1708, 1908, 2196, 2226, 2268, 2562, 2862, 3233, 3294, 3339, 3402, 3843, 4293, 4452, 4941, 5124, 5724, 6466, 6588, 6678, 6804, 7686, 8586, 9699, 9882, 10017, 11529, 12879, 12932, 13356, 14823, 15372, 17172, 19398, 19764, 20034, 22631, 23058, 25758, 29097, 29646, 30051, 34587, 38796, 40068, 45262, 46116, 51516, 58194, 59292, 60102, 67893, 69174, 87291, 90153, 90524, 103761, 116388, 120204, 135786, 138348, 174582, 180306, 203679, 207522, 261873, 271572, 349164, 360612, 407358, 415044, 523746, 611037, 785619, 814716, 1047492, 1222074, 1571238, 1833111, 2444148, 3142476, 3666222, 5499333, 7332444, 10998666, 21997332]

約数ペア:

[(1, 21997332), (2, 10998666), (3, 7332444), (4, 5499333), (6, 3666222), (7, 3142476), (9, 2444148), (12, 1833111), (14, 1571238), (18, 1222074), (21, 1047492), (27, 814716), (28, 785619), (36, 611037), (42, 523746), (53, 415044), (54, 407358), (61, 360612), (63, 349164), (81, 271572), (84, 261873), (106, 207522), (108, 203679), (122, 180306), (126, 174582), (159, 138348), (162, 135786), (183, 120204), (189, 116388), (212, 103761), (243, 90524), (244, 90153), (252, 87291), (318, 69174), (324, 67893), (366, 60102), (371, 59292), (378, 58194), (427, 51516), (477, 46116), (486, 45262), (549, 40068), (567, 38796), (636, 34587), (732, 30051), (742, 29646), (756, 29097), (854, 25758), (954, 23058), (972, 22631), (1098, 20034), (1113, 19764), (1134, 19398), (1281, 17172), (1431, 15372), (1484, 14823), (1647, 13356), (1701, 12932), (1708, 12879), (1908, 11529), (2196, 10017), (2226, 9882), (2268, 9699), (2562, 8586), (2862, 7686), (3233, 6804), (3294, 6678), (3339, 6588), (3402, 6466), (3843, 5724), (4293, 5124), (4452, 4941)]