21268275

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2383}}^1$

素因数の和:2420

約数の個数: 48

約数和(自身を含む): 42568704

約数和(自身を除く): 21300429

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 175, 255, 357, 425, 525, 595, 1275, 1785, 2383, 2975, 7149, 8925, 11915, 16681, 35745, 40511, 50043, 59575, 83405, 121533, 178725, 202555, 250215, 283577, 417025, 607665, 850731, 1012775, 1251075, 1417885, 3038325, 4253655, 7089425, 21268275]

約数ペア:

[(1, 21268275), (3, 7089425), (5, 4253655), (7, 3038325), (15, 1417885), (17, 1251075), (21, 1012775), (25, 850731), (35, 607665), (51, 417025), (75, 283577), (85, 250215), (105, 202555), (119, 178725), (175, 121533), (255, 83405), (357, 59575), (425, 50043), (525, 40511), (595, 35745), (1275, 16681), (1785, 11915), (2383, 8925), (2975, 7149)]