19977168

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{10151}}^1$

素因数の和:10203

約数の個数: 40

約数和(自身を含む): 52871616

約数和(自身を除く): 32894448

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 10151, 20302, 30453, 40604, 60906, 81208, 121812, 162416, 243624, 416191, 487248, 832382, 1248573, 1664764, 2497146, 3329528, 4994292, 6659056, 9988584, 19977168]

約数ペア:

[(1, 19977168), (2, 9988584), (3, 6659056), (4, 4994292), (6, 3329528), (8, 2497146), (12, 1664764), (16, 1248573), (24, 832382), (41, 487248), (48, 416191), (82, 243624), (123, 162416), (164, 121812), (246, 81208), (328, 60906), (492, 40604), (656, 30453), (984, 20302), (1968, 10151)]