21398312

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3373}}^1$

素因数の和:3453

約数の個数: 32

約数和(自身を含む): 43929480

約数和(自身を除く): 22531168

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 3373, 6344, 6746, 13492, 26984, 43849, 87698, 175396, 205753, 350792, 411506, 823012, 1646024, 2674789, 5349578, 10699156, 21398312]

約数ペア:

[(1, 21398312), (2, 10699156), (4, 5349578), (8, 2674789), (13, 1646024), (26, 823012), (52, 411506), (61, 350792), (104, 205753), (122, 175396), (244, 87698), (488, 43849), (793, 26984), (1586, 13492), (3172, 6746), (3373, 6344)]