28126917

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 50913408

約数和(自身を除く): 22786491

約数列:

[1, 3, 7, 9, 13, 21, 39, 61, 63, 91, 117, 183, 273, 427, 549, 563, 793, 819, 1281, 1689, 2379, 3843, 3941, 5067, 5551, 7137, 7319, 11823, 16653, 21957, 34343, 35469, 49959, 51233, 65871, 103029, 153699, 240401, 309087, 446459, 461097, 721203, 1339377, 2163609, 3125213, 4018131, 9375639, 28126917]

約数ペア:

[(1, 28126917), (3, 9375639), (7, 4018131), (9, 3125213), (13, 2163609), (21, 1339377), (39, 721203), (61, 461097), (63, 446459), (91, 309087), (117, 240401), (183, 153699), (273, 103029), (427, 65871), (549, 51233), (563, 49959), (793, 35469), (819, 34343), (1281, 21957), (1689, 16653), (2379, 11823), (3843, 7319), (3941, 7137), (5067, 5551)]