21105482

素因数分解:

$2^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:282

約数の個数: 24

約数和(自身を含む): 33364800

約数和(自身を除く): 12259318

約数列:

[1, 2, 31, 62, 79, 139, 158, 278, 961, 1922, 2449, 4309, 4898, 8618, 10981, 21962, 75919, 133579, 151838, 267158, 340411, 680822, 10552741, 21105482]

約数ペア:

[(1, 21105482), (2, 10552741), (31, 680822), (62, 340411), (79, 267158), (139, 151838), (158, 133579), (278, 75919), (961, 21962), (1922, 10981), (2449, 8618), (4309, 4898)]