291275439

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:608

約数の個数: 64

約数和(自身を含む): 499903488

約数和(自身を除く): 208628049

約数列:

[1, 3, 7, 13, 21, 39, 41, 53, 91, 123, 159, 273, 287, 371, 491, 533, 689, 861, 1113, 1473, 1599, 2067, 2173, 3437, 3731, 4823, 6383, 6519, 10311, 11193, 14469, 15211, 19149, 20131, 26023, 28249, 44681, 45633, 60393, 78069, 84747, 134043, 140917, 182161, 197743, 261703, 338299, 422751, 546483, 593229, 785109, 1014897, 1066943, 1831921, 2368093, 3200829, 5495763, 7104279, 7468601, 13870259, 22405803, 41610777, 97091813, 291275439]

約数ペア:

[(1, 291275439), (3, 97091813), (7, 41610777), (13, 22405803), (21, 13870259), (39, 7468601), (41, 7104279), (53, 5495763), (91, 3200829), (123, 2368093), (159, 1831921), (273, 1066943), (287, 1014897), (371, 785109), (491, 593229), (533, 546483), (689, 422751), (861, 338299), (1113, 261703), (1473, 197743), (1599, 182161), (2067, 140917), (2173, 134043), (3437, 84747), (3731, 78069), (4823, 60393), (6383, 45633), (6519, 44681), (10311, 28249), (11193, 26023), (14469, 20131), (15211, 19149)]