21427144

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{379}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 41587200

約数和(自身を除く): 20160056

約数列:

[1, 2, 4, 8, 37, 74, 148, 191, 296, 379, 382, 758, 764, 1516, 1528, 3032, 7067, 14023, 14134, 28046, 28268, 56092, 56536, 72389, 112184, 144778, 289556, 579112, 2678393, 5356786, 10713572, 21427144]

約数ペア:

[(1, 21427144), (2, 10713572), (4, 5356786), (8, 2678393), (37, 579112), (74, 289556), (148, 144778), (191, 112184), (296, 72389), (379, 56536), (382, 56092), (758, 28268), (764, 28046), (1516, 14134), (1528, 14023), (3032, 7067)]