21771570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 33386190

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 139, 227, 230, 278, 345, 417, 454, 681, 690, 695, 834, 1135, 1362, 1390, 2085, 2270, 3197, 3405, 4170, 5221, 6394, 6810, 9591, 10442, 15663, 15985, 19182, 26105, 31326, 31553, 31970, 47955, 52210, 63106, 78315, 94659, 95910, 156630, 157765, 189318, 315530, 473295, 725719, 946590, 1451438, 2177157, 3628595, 4354314, 7257190, 10885785, 21771570]

約数ペア:

[(1, 21771570), (2, 10885785), (3, 7257190), (5, 4354314), (6, 3628595), (10, 2177157), (15, 1451438), (23, 946590), (30, 725719), (46, 473295), (69, 315530), (115, 189318), (138, 157765), (139, 156630), (227, 95910), (230, 94659), (278, 78315), (345, 63106), (417, 52210), (454, 47955), (681, 31970), (690, 31553), (695, 31326), (834, 26105), (1135, 19182), (1362, 15985), (1390, 15663), (2085, 10442), (2270, 9591), (3197, 6810), (3405, 6394), (4170, 5221)]