21274425

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4111}}^1$

素因数の和:4150

約数の個数: 36

約数和(自身を含む): 39771264

約数和(自身を除く): 18496839

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 4111, 5175, 12333, 20555, 36999, 61665, 94553, 102775, 184995, 283659, 308325, 472765, 850977, 924975, 1418295, 2363825, 4254885, 7091475, 21274425]

約数ペア:

[(1, 21274425), (3, 7091475), (5, 4254885), (9, 2363825), (15, 1418295), (23, 924975), (25, 850977), (45, 472765), (69, 308325), (75, 283659), (115, 184995), (207, 102775), (225, 94553), (345, 61665), (575, 36999), (1035, 20555), (1725, 12333), (4111, 5175)]