21026044

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 41771520

約数和(自身を除く): 20745476

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 73, 116, 146, 191, 292, 377, 382, 754, 764, 949, 1508, 1898, 2117, 2483, 3796, 4234, 4966, 5539, 8468, 9932, 11078, 13943, 22156, 27521, 27886, 55042, 55772, 72007, 110084, 144014, 181259, 288028, 362518, 404347, 725036, 808694, 1617388, 5256511, 10513022, 21026044]

約数ペア:

[(1, 21026044), (2, 10513022), (4, 5256511), (13, 1617388), (26, 808694), (29, 725036), (52, 404347), (58, 362518), (73, 288028), (116, 181259), (146, 144014), (191, 110084), (292, 72007), (377, 55772), (382, 55042), (754, 27886), (764, 27521), (949, 22156), (1508, 13943), (1898, 11078), (2117, 9932), (2483, 8468), (3796, 5539), (4234, 4966)]