21261254

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{569}}^1$

素因数の和:752

約数の個数: 32

約数和(自身を含む): 38905920

約数和(自身を除く): 17644666

約数列:

[1, 2, 7, 14, 17, 34, 119, 157, 238, 314, 569, 1099, 1138, 2198, 2669, 3983, 5338, 7966, 9673, 18683, 19346, 37366, 67711, 89333, 135422, 178666, 625331, 1250662, 1518661, 3037322, 10630627, 21261254]

約数ペア:

[(1, 21261254), (2, 10630627), (7, 3037322), (14, 1518661), (17, 1250662), (34, 625331), (119, 178666), (157, 135422), (238, 89333), (314, 67711), (569, 37366), (1099, 19346), (1138, 18683), (2198, 9673), (2669, 7966), (3983, 5338)]