18996131

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 25159680

約数和(自身を除く): 6163549

約数列:

[1, 7, 11, 29, 47, 77, 181, 203, 319, 329, 517, 1267, 1363, 1991, 2233, 3619, 5249, 8507, 9541, 13937, 14993, 36743, 57739, 59549, 93577, 104951, 246703, 404173, 655039, 1726921, 2713733, 18996131]

約数ペア:

[(1, 18996131), (7, 2713733), (11, 1726921), (29, 655039), (47, 404173), (77, 246703), (181, 104951), (203, 93577), (319, 59549), (329, 57739), (517, 36743), (1267, 14993), (1363, 13937), (1991, 9541), (2233, 8507), (3619, 5249)]