18770554

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:342

約数の個数: 32

約数和(自身を含む): 31819392

約数和(自身を除く): 13048838

約数列:

[1, 2, 11, 22, 61, 71, 122, 142, 197, 394, 671, 781, 1342, 1562, 2167, 4331, 4334, 8662, 12017, 13987, 24034, 27974, 47641, 95282, 132187, 153857, 264374, 307714, 853207, 1706414, 9385277, 18770554]

約数ペア:

[(1, 18770554), (2, 9385277), (11, 1706414), (22, 853207), (61, 307714), (71, 264374), (122, 153857), (142, 132187), (197, 95282), (394, 47641), (671, 27974), (781, 24034), (1342, 13987), (1562, 12017), (2167, 8662), (4331, 4334)]