18865448

素因数分解:

$2^3\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2459}}^1$

素因数の和:2609

約数の個数: 32

約数和(自身を含む): 40737600

約数和(自身を除く): 21872152

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 137, 274, 548, 959, 1096, 1918, 2459, 3836, 4918, 7672, 9836, 17213, 19672, 34426, 68852, 137704, 336883, 673766, 1347532, 2358181, 2695064, 4716362, 9432724, 18865448]

約数ペア:

[(1, 18865448), (2, 9432724), (4, 4716362), (7, 2695064), (8, 2358181), (14, 1347532), (28, 673766), (56, 336883), (137, 137704), (274, 68852), (548, 34426), (959, 19672), (1096, 17213), (1918, 9836), (2459, 7672), (3836, 4918)]