20688966

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{727}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 29630394

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 31, 34, 51, 54, 62, 93, 102, 153, 186, 279, 306, 459, 527, 558, 727, 837, 918, 1054, 1454, 1581, 1674, 2181, 3162, 4362, 4743, 6543, 9486, 12359, 13086, 14229, 19629, 22537, 24718, 28458, 37077, 39258, 45074, 67611, 74154, 111231, 135222, 202833, 222462, 333693, 383129, 405666, 608499, 667386, 766258, 1149387, 1216998, 2298774, 3448161, 6896322, 10344483, 20688966]

約数ペア:

[(1, 20688966), (2, 10344483), (3, 6896322), (6, 3448161), (9, 2298774), (17, 1216998), (18, 1149387), (27, 766258), (31, 667386), (34, 608499), (51, 405666), (54, 383129), (62, 333693), (93, 222462), (102, 202833), (153, 135222), (186, 111231), (279, 74154), (306, 67611), (459, 45074), (527, 39258), (558, 37077), (727, 28458), (837, 24718), (918, 22537), (1054, 19629), (1454, 14229), (1581, 13086), (1674, 12359), (2181, 9486), (3162, 6543), (4362, 4743)]