258207978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{166157}}^1$

素因数の和:166206

約数の個数: 32

約数和(自身を含む): 606144384

約数和(自身を除く): 347936406

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 166157, 332314, 498471, 996942, 1163099, 2326198, 3489297, 6147809, 6978594, 12295618, 18443427, 36886854, 43034663, 86069326, 129103989, 258207978]

約数ペア:

[(1, 258207978), (2, 129103989), (3, 86069326), (6, 43034663), (7, 36886854), (14, 18443427), (21, 12295618), (37, 6978594), (42, 6147809), (74, 3489297), (111, 2326198), (222, 1163099), (259, 996942), (518, 498471), (777, 332314), (1554, 166157)]