20849556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:401

約数の個数: 96

約数和(自身を含む): 61051648

約数和(自身を除く): 40202092

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 61, 78, 84, 91, 122, 156, 182, 183, 244, 273, 313, 364, 366, 427, 546, 626, 732, 793, 854, 939, 1092, 1252, 1281, 1586, 1708, 1878, 2191, 2379, 2562, 3172, 3756, 4069, 4382, 4758, 5124, 5551, 6573, 8138, 8764, 9516, 11102, 12207, 13146, 16276, 16653, 19093, 22204, 24414, 26292, 28483, 33306, 38186, 48828, 56966, 57279, 66612, 76372, 85449, 113932, 114558, 133651, 170898, 229116, 248209, 267302, 341796, 400953, 496418, 534604, 744627, 801906, 992836, 1489254, 1603812, 1737463, 2978508, 3474926, 5212389, 6949852, 10424778, 20849556]

約数ペア:

[(1, 20849556), (2, 10424778), (3, 6949852), (4, 5212389), (6, 3474926), (7, 2978508), (12, 1737463), (13, 1603812), (14, 1489254), (21, 992836), (26, 801906), (28, 744627), (39, 534604), (42, 496418), (52, 400953), (61, 341796), (78, 267302), (84, 248209), (91, 229116), (122, 170898), (156, 133651), (182, 114558), (183, 113932), (244, 85449), (273, 76372), (313, 66612), (364, 57279), (366, 56966), (427, 48828), (546, 38186), (626, 33306), (732, 28483), (793, 26292), (854, 24414), (939, 22204), (1092, 19093), (1252, 16653), (1281, 16276), (1586, 13146), (1708, 12207), (1878, 11102), (2191, 9516), (2379, 8764), (2562, 8138), (3172, 6573), (3756, 5551), (4069, 5124), (4382, 4758)]