3958857

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:258

約数の個数: 36

約数和(自身を含む): 6829056

約数和(自身を除く): 2870199

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 191, 329, 423, 441, 573, 987, 1337, 1719, 2303, 2961, 4011, 6909, 8977, 9359, 12033, 20727, 26931, 28077, 62839, 80793, 84231, 188517, 439873, 565551, 1319619, 3958857]

約数ペア:

[(1, 3958857), (3, 1319619), (7, 565551), (9, 439873), (21, 188517), (47, 84231), (49, 80793), (63, 62839), (141, 28077), (147, 26931), (191, 20727), (329, 12033), (423, 9359), (441, 8977), (573, 6909), (987, 4011), (1337, 2961), (1719, 2303)]