21405832

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{10331}}^1$

素因数の和:10381

約数の個数: 32

約数和(自身を含む): 47113920

約数和(自身を除く): 25708088

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 1036, 2072, 10331, 20662, 41324, 72317, 82648, 144634, 289268, 382247, 578536, 764494, 1528988, 2675729, 3057976, 5351458, 10702916, 21405832]

約数ペア:

[(1, 21405832), (2, 10702916), (4, 5351458), (7, 3057976), (8, 2675729), (14, 1528988), (28, 764494), (37, 578536), (56, 382247), (74, 289268), (148, 144634), (259, 82648), (296, 72317), (518, 41324), (1036, 20662), (2072, 10331)]