18958988

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{241}}^1\times {\mathrm{277}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 33907104

約数和(自身を除く): 14948116

約数列:

[1, 2, 4, 71, 142, 241, 277, 284, 482, 554, 964, 1108, 17111, 19667, 34222, 39334, 66757, 68444, 78668, 133514, 267028, 4739747, 9479494, 18958988]

約数ペア:

[(1, 18958988), (2, 9479494), (4, 4739747), (71, 267028), (142, 133514), (241, 78668), (277, 68444), (284, 66757), (482, 39334), (554, 34222), (964, 19667), (1108, 17111)]