68639921

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 84983808

約数和(自身を除く): 16343887

約数列:

[1, 7, 31, 37, 83, 103, 217, 259, 581, 721, 1147, 2573, 3071, 3193, 3811, 8029, 8549, 18011, 21497, 22351, 26677, 59843, 95201, 118141, 265019, 316313, 666407, 826987, 1855133, 2214191, 9805703, 68639921]

約数ペア:

[(1, 68639921), (7, 9805703), (31, 2214191), (37, 1855133), (83, 826987), (103, 666407), (217, 316313), (259, 265019), (581, 118141), (721, 95201), (1147, 59843), (2573, 26677), (3071, 22351), (3193, 21497), (3811, 18011), (8029, 8549)]