21887572

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{571}}^1$

素因数の和:656

約数の個数: 36

約数和(自身を含む): 45069024

約数和(自身を除く): 23181452

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 571, 1036, 1142, 1369, 2284, 2738, 3997, 5476, 7994, 9583, 15988, 19166, 21127, 38332, 42254, 84508, 147889, 295778, 591556, 781699, 1563398, 3126796, 5471893, 10943786, 21887572]

約数ペア:

[(1, 21887572), (2, 10943786), (4, 5471893), (7, 3126796), (14, 1563398), (28, 781699), (37, 591556), (74, 295778), (148, 147889), (259, 84508), (518, 42254), (571, 38332), (1036, 21127), (1142, 19166), (1369, 15988), (2284, 9583), (2738, 7994), (3997, 5476)]