21377330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{569}}^1$

素因数の和:623

約数の個数: 48

約数和(自身を含む): 44097480

約数和(自身を除く): 22720150

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 289, 442, 569, 578, 1105, 1138, 1445, 2210, 2845, 2890, 3757, 5690, 7397, 7514, 9673, 14794, 18785, 19346, 36985, 37570, 48365, 73970, 96730, 125749, 164441, 251498, 328882, 628745, 822205, 1257490, 1644410, 2137733, 4275466, 10688665, 21377330]

約数ペア:

[(1, 21377330), (2, 10688665), (5, 4275466), (10, 2137733), (13, 1644410), (17, 1257490), (26, 822205), (34, 628745), (65, 328882), (85, 251498), (130, 164441), (170, 125749), (221, 96730), (289, 73970), (442, 48365), (569, 37570), (578, 36985), (1105, 19346), (1138, 18785), (1445, 14794), (2210, 9673), (2845, 7514), (2890, 7397), (3757, 5690)]