31943961

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 55036800

約数和(自身を除く): 23092839

約数列:

[1, 3, 7, 9, 21, 41, 63, 83, 123, 149, 249, 287, 369, 447, 581, 747, 861, 1043, 1341, 1743, 2583, 3129, 3403, 5229, 6109, 9387, 10209, 12367, 18327, 23821, 30627, 37101, 42763, 54981, 71463, 86569, 111303, 128289, 214389, 259707, 384867, 507047, 779121, 1521141, 3549329, 4563423, 10647987, 31943961]

約数ペア:

[(1, 31943961), (3, 10647987), (7, 4563423), (9, 3549329), (21, 1521141), (41, 779121), (63, 507047), (83, 384867), (123, 259707), (149, 214389), (249, 128289), (287, 111303), (369, 86569), (447, 71463), (581, 54981), (747, 42763), (861, 37101), (1043, 30627), (1341, 23821), (1743, 18327), (2583, 12367), (3129, 10209), (3403, 9387), (5229, 6109)]