21138032

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2243}}^1$

素因数の和:2301

約数の個数: 40

約数和(自身を含む): 44520960

約数和(自身を除く): 23382928

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2243, 2356, 4486, 4712, 8972, 9424, 17944, 35888, 42617, 69533, 85234, 139066, 170468, 278132, 340936, 556264, 681872, 1112528, 1321127, 2642254, 5284508, 10569016, 21138032]

約数ペア:

[(1, 21138032), (2, 10569016), (4, 5284508), (8, 2642254), (16, 1321127), (19, 1112528), (31, 681872), (38, 556264), (62, 340936), (76, 278132), (124, 170468), (152, 139066), (248, 85234), (304, 69533), (496, 42617), (589, 35888), (1178, 17944), (2243, 9424), (2356, 8972), (4486, 4712)]