21926331

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 38072320

約数和(自身を除く): 16145989

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 103, 109, 217, 279, 309, 327, 651, 721, 763, 927, 981, 1953, 2163, 2289, 3193, 3379, 6489, 6867, 9579, 10137, 11227, 22351, 23653, 28737, 30411, 33681, 67053, 70959, 78589, 101043, 201159, 212877, 235767, 348037, 707301, 1044111, 2436259, 3132333, 7308777, 21926331]

約数ペア:

[(1, 21926331), (3, 7308777), (7, 3132333), (9, 2436259), (21, 1044111), (31, 707301), (63, 348037), (93, 235767), (103, 212877), (109, 201159), (217, 101043), (279, 78589), (309, 70959), (327, 67053), (651, 33681), (721, 30411), (763, 28737), (927, 23653), (981, 22351), (1953, 11227), (2163, 10137), (2289, 9579), (3193, 6867), (3379, 6489)]