21963920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2269}}^1$

素因数の和:2304

約数の個数: 60

約数和(自身を含む): 56155260

約数和(自身を除く): 34191340

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2269, 2420, 4538, 4840, 9076, 9680, 11345, 18152, 22690, 24959, 36304, 45380, 49918, 90760, 99836, 124795, 181520, 199672, 249590, 274549, 399344, 499180, 549098, 998360, 1098196, 1372745, 1996720, 2196392, 2745490, 4392784, 5490980, 10981960, 21963920]

約数ペア:

[(1, 21963920), (2, 10981960), (4, 5490980), (5, 4392784), (8, 2745490), (10, 2196392), (11, 1996720), (16, 1372745), (20, 1098196), (22, 998360), (40, 549098), (44, 499180), (55, 399344), (80, 274549), (88, 249590), (110, 199672), (121, 181520), (176, 124795), (220, 99836), (242, 90760), (440, 49918), (484, 45380), (605, 36304), (880, 24959), (968, 22690), (1210, 18152), (1936, 11345), (2269, 9680), (2420, 9076), (4538, 4840)]