21259552

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:809

約数の個数: 48

約数和(自身を含む): 44755200

約数和(自身を除く): 23495648

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 116, 124, 232, 248, 464, 496, 739, 899, 928, 992, 1478, 1798, 2956, 3596, 5912, 7192, 11824, 14384, 21431, 22909, 23648, 28768, 42862, 45818, 85724, 91636, 171448, 183272, 342896, 366544, 664361, 685792, 733088, 1328722, 2657444, 5314888, 10629776, 21259552]

約数ペア:

[(1, 21259552), (2, 10629776), (4, 5314888), (8, 2657444), (16, 1328722), (29, 733088), (31, 685792), (32, 664361), (58, 366544), (62, 342896), (116, 183272), (124, 171448), (232, 91636), (248, 85724), (464, 45818), (496, 42862), (739, 28768), (899, 23648), (928, 22909), (992, 21431), (1478, 14384), (1798, 11824), (2956, 7192), (3596, 5912)]