20903238

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{12487}}^1$

素因数の和:12529

約数の個数: 32

約数和(自身を含む): 47953920

約数和(自身を除く): 27050682

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 186, 279, 558, 837, 1674, 12487, 24974, 37461, 74922, 112383, 224766, 337149, 387097, 674298, 774194, 1161291, 2322582, 3483873, 6967746, 10451619, 20903238]

約数ペア:

[(1, 20903238), (2, 10451619), (3, 6967746), (6, 3483873), (9, 2322582), (18, 1161291), (27, 774194), (31, 674298), (54, 387097), (62, 337149), (93, 224766), (186, 112383), (279, 74922), (558, 37461), (837, 24974), (1674, 12487)]