18331504

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1283}}^1$

素因数の和:1357

約数の個数: 40

約数和(自身を含む): 38211840

約数和(自身を除く): 19880336

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 94, 152, 188, 304, 376, 752, 893, 1283, 1786, 2566, 3572, 5132, 7144, 10264, 14288, 20528, 24377, 48754, 60301, 97508, 120602, 195016, 241204, 390032, 482408, 964816, 1145719, 2291438, 4582876, 9165752, 18331504]

約数ペア:

[(1, 18331504), (2, 9165752), (4, 4582876), (8, 2291438), (16, 1145719), (19, 964816), (38, 482408), (47, 390032), (76, 241204), (94, 195016), (152, 120602), (188, 97508), (304, 60301), (376, 48754), (752, 24377), (893, 20528), (1283, 14288), (1786, 10264), (2566, 7144), (3572, 5132)]