18471986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{1979}}^1$

素因数の和:2353

約数の個数: 16

約数和(自身を含む): 29937600

約数和(自身を除く): 11465614

約数列:

[1, 2, 13, 26, 359, 718, 1979, 3958, 4667, 9334, 25727, 51454, 710461, 1420922, 9235993, 18471986]

約数ペア:

[(1, 18471986), (2, 9235993), (13, 1420922), (26, 710461), (359, 51454), (718, 25727), (1979, 9334), (3958, 4667)]