21227458

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1129}}^1$

素因数の和:1234

約数の個数: 32

約数和(自身を含む): 39052800

約数和(自身を除く): 17825342

約数列:

[1, 2, 7, 14, 17, 34, 79, 119, 158, 238, 553, 1106, 1129, 1343, 2258, 2686, 7903, 9401, 15806, 18802, 19193, 38386, 89191, 134351, 178382, 268702, 624337, 1248674, 1516247, 3032494, 10613729, 21227458]

約数ペア:

[(1, 21227458), (2, 10613729), (7, 3032494), (14, 1516247), (17, 1248674), (34, 624337), (79, 268702), (119, 178382), (158, 134351), (238, 89191), (553, 38386), (1106, 19193), (1129, 18802), (1343, 15806), (2258, 9401), (2686, 7903)]