138826401

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{1993}}^1$

素因数の和:2141

約数の個数: 32

約数和(自身を含む): 220520448

約数和(自身を除く): 81694047

約数列:

[1, 3, 7, 21, 31, 93, 107, 217, 321, 651, 749, 1993, 2247, 3317, 5979, 9951, 13951, 23219, 41853, 61783, 69657, 185349, 213251, 432481, 639753, 1297443, 1492757, 4478271, 6610781, 19832343, 46275467, 138826401]

約数ペア:

[(1, 138826401), (3, 46275467), (7, 19832343), (21, 6610781), (31, 4478271), (93, 1492757), (107, 1297443), (217, 639753), (321, 432481), (651, 213251), (749, 185349), (1993, 69657), (2247, 61783), (3317, 41853), (5979, 23219), (9951, 13951)]