21000724778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1087}}^1\times {\mathrm{3769}}^1$

素因数の和:5102

約数の個数: 32

約数和(自身を含む): 34553226240

約数和(自身を除く): 13552501462

約数列:

[1, 2, 11, 22, 233, 466, 1087, 2174, 2563, 3769, 5126, 7538, 11957, 23914, 41459, 82918, 253271, 506542, 878177, 1756354, 2785981, 4096903, 5571962, 8193806, 9659947, 19319894, 45065933, 90131866, 954578399, 1909156798, 10500362389, 21000724778]

約数ペア:

[(1, 21000724778), (2, 10500362389), (11, 1909156798), (22, 954578399), (233, 90131866), (466, 45065933), (1087, 19319894), (2174, 9659947), (2563, 8193806), (3769, 5571962), (5126, 4096903), (7538, 2785981), (11957, 1756354), (23914, 878177), (41459, 506542), (82918, 253271)]