21026635

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4517}}^1$

素因数の和:4555

約数の個数: 24

約数和(自身を含む): 30903120

約数和(自身を除く): 9876485

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 4517, 4655, 22585, 31619, 85823, 158095, 221333, 429115, 600761, 1106665, 3003805, 4205327, 21026635]

約数ペア:

[(1, 21026635), (5, 4205327), (7, 3003805), (19, 1106665), (35, 600761), (49, 429115), (95, 221333), (133, 158095), (245, 85823), (665, 31619), (931, 22585), (4517, 4655)]