18994568

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 37048320

約数和(自身を除く): 18053752

約数列:

[1, 2, 4, 8, 31, 62, 124, 191, 248, 382, 401, 764, 802, 1528, 1604, 3208, 5921, 11842, 12431, 23684, 24862, 47368, 49724, 76591, 99448, 153182, 306364, 612728, 2374321, 4748642, 9497284, 18994568]

約数ペア:

[(1, 18994568), (2, 9497284), (4, 4748642), (8, 2374321), (31, 612728), (62, 306364), (124, 153182), (191, 99448), (248, 76591), (382, 49724), (401, 47368), (764, 24862), (802, 23684), (1528, 12431), (1604, 11842), (3208, 5921)]