21855132

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 65493792

約数和(自身を除く): 43638660

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 41, 51, 52, 67, 68, 78, 82, 102, 117, 123, 134, 153, 156, 164, 201, 204, 221, 234, 246, 268, 306, 369, 402, 442, 468, 492, 533, 603, 612, 663, 697, 738, 804, 871, 884, 1066, 1139, 1206, 1326, 1394, 1476, 1599, 1742, 1989, 2091, 2132, 2278, 2412, 2613, 2652, 2747, 2788, 3198, 3417, 3484, 3978, 4182, 4556, 4797, 5226, 5494, 6273, 6396, 6834, 7839, 7956, 8241, 8364, 9061, 9594, 10251, 10452, 10988, 12546, 13668, 14807, 15678, 16482, 18122, 19188, 20502, 24723, 25092, 27183, 29614, 31356, 32964, 35711, 36244, 41004, 44421, 46699, 49446, 54366, 59228, 71422, 81549, 88842, 93398, 98892, 107133, 108732, 133263, 140097, 142844, 163098, 177684, 186796, 214266, 266526, 280194, 321399, 326196, 420291, 428532, 533052, 560388, 607087, 642798, 840582, 1214174, 1285596, 1681164, 1821261, 2428348, 3642522, 5463783, 7285044, 10927566, 21855132]

約数ペア:

[(1, 21855132), (2, 10927566), (3, 7285044), (4, 5463783), (6, 3642522), (9, 2428348), (12, 1821261), (13, 1681164), (17, 1285596), (18, 1214174), (26, 840582), (34, 642798), (36, 607087), (39, 560388), (41, 533052), (51, 428532), (52, 420291), (67, 326196), (68, 321399), (78, 280194), (82, 266526), (102, 214266), (117, 186796), (123, 177684), (134, 163098), (153, 142844), (156, 140097), (164, 133263), (201, 108732), (204, 107133), (221, 98892), (234, 93398), (246, 88842), (268, 81549), (306, 71422), (369, 59228), (402, 54366), (442, 49446), (468, 46699), (492, 44421), (533, 41004), (603, 36244), (612, 35711), (663, 32964), (697, 31356), (738, 29614), (804, 27183), (871, 25092), (884, 24723), (1066, 20502), (1139, 19188), (1206, 18122), (1326, 16482), (1394, 15678), (1476, 14807), (1599, 13668), (1742, 12546), (1989, 10988), (2091, 10452), (2132, 10251), (2278, 9594), (2412, 9061), (2613, 8364), (2652, 8241), (2747, 7956), (2788, 7839), (3198, 6834), (3417, 6396), (3484, 6273), (3978, 5494), (4182, 5226), (4556, 4797)]