247381519

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2801}}^1$

素因数の和:2887

約数の個数: 32

約数和(自身を含む): 327094272

約数和(自身を除く): 79712753

約数列:

[1, 7, 11, 31, 37, 77, 217, 259, 341, 407, 1147, 2387, 2801, 2849, 8029, 12617, 19607, 30811, 86831, 88319, 103637, 215677, 607817, 725459, 955141, 1140007, 3212747, 6685987, 7980049, 22489229, 35340217, 247381519]

約数ペア:

[(1, 247381519), (7, 35340217), (11, 22489229), (31, 7980049), (37, 6685987), (77, 3212747), (217, 1140007), (259, 955141), (341, 725459), (407, 607817), (1147, 215677), (2387, 103637), (2801, 88319), (2849, 86831), (8029, 30811), (12617, 19607)]