21098990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{3251}}^1$

素因数の和:3328

約数の個数: 32

約数和(自身を含む): 42145920

約数和(自身を除く): 21046930

約数列:

[1, 2, 5, 10, 11, 22, 55, 59, 110, 118, 295, 590, 649, 1298, 3245, 3251, 6490, 6502, 16255, 32510, 35761, 71522, 178805, 191809, 357610, 383618, 959045, 1918090, 2109899, 4219798, 10549495, 21098990]

約数ペア:

[(1, 21098990), (2, 10549495), (5, 4219798), (10, 2109899), (11, 1918090), (22, 959045), (55, 383618), (59, 357610), (110, 191809), (118, 178805), (295, 71522), (590, 35761), (649, 32510), (1298, 16255), (3245, 6502), (3251, 6490)]