3211215

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 6352992

約数和(自身を除く): 3141777

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 245, 255, 257, 357, 595, 735, 771, 833, 1285, 1785, 1799, 2499, 3855, 4165, 4369, 5397, 8995, 12495, 12593, 13107, 21845, 26985, 30583, 37779, 62965, 65535, 91749, 152915, 188895, 214081, 458745, 642243, 1070405, 3211215]

約数ペア:

[(1, 3211215), (3, 1070405), (5, 642243), (7, 458745), (15, 214081), (17, 188895), (21, 152915), (35, 91749), (49, 65535), (51, 62965), (85, 37779), (105, 30583), (119, 26985), (147, 21845), (245, 13107), (255, 12593), (257, 12495), (357, 8995), (595, 5397), (735, 4369), (771, 4165), (833, 3855), (1285, 2499), (1785, 1799)]