21303396

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:269

約数の個数: 72

約数和(自身を含む): 55855800

約数和(自身を除く): 34552404

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 89, 109, 122, 178, 183, 218, 244, 267, 327, 356, 366, 436, 534, 549, 654, 732, 801, 981, 1068, 1098, 1308, 1602, 1962, 2196, 3204, 3924, 5429, 6649, 9701, 10858, 13298, 16287, 19402, 19947, 21716, 26596, 29103, 32574, 38804, 39894, 48861, 58206, 59841, 65148, 79788, 87309, 97722, 116412, 119682, 174618, 195444, 239364, 349236, 591761, 1183522, 1775283, 2367044, 3550566, 5325849, 7101132, 10651698, 21303396]

約数ペア:

[(1, 21303396), (2, 10651698), (3, 7101132), (4, 5325849), (6, 3550566), (9, 2367044), (12, 1775283), (18, 1183522), (36, 591761), (61, 349236), (89, 239364), (109, 195444), (122, 174618), (178, 119682), (183, 116412), (218, 97722), (244, 87309), (267, 79788), (327, 65148), (356, 59841), (366, 58206), (436, 48861), (534, 39894), (549, 38804), (654, 32574), (732, 29103), (801, 26596), (981, 21716), (1068, 19947), (1098, 19402), (1308, 16287), (1602, 13298), (1962, 10858), (2196, 9701), (3204, 6649), (3924, 5429)]