20214675

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{6911}}^1$

素因数の和:6940

約数の個数: 36

約数和(自身を含む): 38997504

約数和(自身を除く): 18782829

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 6911, 20733, 34555, 62199, 89843, 103665, 172775, 269529, 310995, 449215, 518325, 808587, 1347645, 1554975, 2246075, 4042935, 6738225, 20214675]

約数ペア:

[(1, 20214675), (3, 6738225), (5, 4042935), (9, 2246075), (13, 1554975), (15, 1347645), (25, 808587), (39, 518325), (45, 449215), (65, 310995), (75, 269529), (117, 172775), (195, 103665), (225, 89843), (325, 62199), (585, 34555), (975, 20733), (2925, 6911)]