128972361

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{757}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 214301760

約数和(自身を除く): 85329399

約数列:

[1, 3, 7, 19, 21, 49, 57, 61, 133, 147, 183, 399, 427, 757, 931, 1159, 1281, 2271, 2793, 2989, 3477, 5299, 8113, 8967, 14383, 15897, 24339, 37093, 43149, 46177, 56791, 100681, 111279, 138531, 170373, 302043, 323239, 704767, 877363, 969717, 2114301, 2262673, 2632089, 6141541, 6788019, 18424623, 42990787, 128972361]

約数ペア:

[(1, 128972361), (3, 42990787), (7, 18424623), (19, 6788019), (21, 6141541), (49, 2632089), (57, 2262673), (61, 2114301), (133, 969717), (147, 877363), (183, 704767), (399, 323239), (427, 302043), (757, 170373), (931, 138531), (1159, 111279), (1281, 100681), (2271, 56791), (2793, 46177), (2989, 43149), (3477, 37093), (5299, 24339), (8113, 15897), (8967, 14383)]