21866776

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 42361200

約数和(自身を除く): 20494424

約数列:

[1, 2, 4, 8, 41, 82, 163, 164, 326, 328, 409, 652, 818, 1304, 1636, 3272, 6683, 13366, 16769, 26732, 33538, 53464, 66667, 67076, 133334, 134152, 266668, 533336, 2733347, 5466694, 10933388, 21866776]

約数ペア:

[(1, 21866776), (2, 10933388), (4, 5466694), (8, 2733347), (41, 533336), (82, 266668), (163, 134152), (164, 133334), (326, 67076), (328, 66667), (409, 53464), (652, 33538), (818, 26732), (1304, 16769), (1636, 13366), (3272, 6683)]