18440474

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 31159296

約数和(自身を除く): 12718822

約数列:

[1, 2, 13, 26, 31, 62, 137, 167, 274, 334, 403, 806, 1781, 2171, 3562, 4247, 4342, 5177, 8494, 10354, 22879, 45758, 55211, 67301, 110422, 134602, 297427, 594854, 709249, 1418498, 9220237, 18440474]

約数ペア:

[(1, 18440474), (2, 9220237), (13, 1418498), (26, 709249), (31, 594854), (62, 297427), (137, 134602), (167, 110422), (274, 67301), (334, 55211), (403, 45758), (806, 22879), (1781, 10354), (2171, 8494), (3562, 5177), (4247, 4342)]