21242632

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 19581368

約数列:

[1, 2, 4, 8, 71, 142, 149, 251, 284, 298, 502, 568, 596, 1004, 1192, 2008, 10579, 17821, 21158, 35642, 37399, 42316, 71284, 74798, 84632, 142568, 149596, 299192, 2655329, 5310658, 10621316, 21242632]

約数ペア:

[(1, 21242632), (2, 10621316), (4, 5310658), (8, 2655329), (71, 299192), (142, 149596), (149, 142568), (251, 84632), (284, 74798), (298, 71284), (502, 42316), (568, 37399), (596, 35642), (1004, 21158), (1192, 17821), (2008, 10579)]