19947408

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{2459}}^1$

素因数の和:2496

約数の個数: 60

約数和(自身を含む): 55822320

約数和(自身を除く): 35874912

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 169, 208, 312, 338, 507, 624, 676, 1014, 1352, 2028, 2459, 2704, 4056, 4918, 7377, 8112, 9836, 14754, 19672, 29508, 31967, 39344, 59016, 63934, 95901, 118032, 127868, 191802, 255736, 383604, 415571, 511472, 767208, 831142, 1246713, 1534416, 1662284, 2493426, 3324568, 4986852, 6649136, 9973704, 19947408]

約数ペア:

[(1, 19947408), (2, 9973704), (3, 6649136), (4, 4986852), (6, 3324568), (8, 2493426), (12, 1662284), (13, 1534416), (16, 1246713), (24, 831142), (26, 767208), (39, 511472), (48, 415571), (52, 383604), (78, 255736), (104, 191802), (156, 127868), (169, 118032), (208, 95901), (312, 63934), (338, 59016), (507, 39344), (624, 31967), (676, 29508), (1014, 19672), (1352, 14754), (2028, 9836), (2459, 8112), (2704, 7377), (4056, 4918)]