21850535

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 9668185

約数列:

[1, 5, 7, 35, 37, 47, 185, 235, 259, 329, 359, 1295, 1645, 1739, 1795, 2513, 8695, 12173, 12565, 13283, 16873, 60865, 66415, 84365, 92981, 118111, 464905, 590555, 624301, 3121505, 4370107, 21850535]

約数ペア:

[(1, 21850535), (5, 4370107), (7, 3121505), (35, 624301), (37, 590555), (47, 464905), (185, 118111), (235, 92981), (259, 84365), (329, 66415), (359, 60865), (1295, 16873), (1645, 13283), (1739, 12565), (1795, 12173), (2513, 8695)]