21942375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:681

約数の個数: 64

約数和(自身を含む): 45007872

約数和(自身を除く): 23065497

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 125, 175, 195, 273, 325, 375, 455, 525, 643, 875, 975, 1365, 1625, 1929, 2275, 2625, 3215, 4501, 4875, 6825, 8359, 9645, 11375, 13503, 16075, 22505, 25077, 34125, 41795, 48225, 58513, 67515, 80375, 112525, 125385, 175539, 208975, 241125, 292565, 337575, 562625, 626925, 877695, 1044875, 1462825, 1687875, 3134625, 4388475, 7314125, 21942375]

約数ペア:

[(1, 21942375), (3, 7314125), (5, 4388475), (7, 3134625), (13, 1687875), (15, 1462825), (21, 1044875), (25, 877695), (35, 626925), (39, 562625), (65, 337575), (75, 292565), (91, 241125), (105, 208975), (125, 175539), (175, 125385), (195, 112525), (273, 80375), (325, 67515), (375, 58513), (455, 48225), (525, 41795), (643, 34125), (875, 25077), (975, 22505), (1365, 16075), (1625, 13503), (1929, 11375), (2275, 9645), (2625, 8359), (3215, 6825), (4501, 4875)]