18038416

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{907}}^1$

素因数の和:1039

約数の個数: 40

約数和(自身を含む): 38506464

約数和(自身を除く): 20468048

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 113, 176, 226, 452, 904, 907, 1243, 1808, 1814, 2486, 3628, 4972, 7256, 9944, 9977, 14512, 19888, 19954, 39908, 79816, 102491, 159632, 204982, 409964, 819928, 1127401, 1639856, 2254802, 4509604, 9019208, 18038416]

約数ペア:

[(1, 18038416), (2, 9019208), (4, 4509604), (8, 2254802), (11, 1639856), (16, 1127401), (22, 819928), (44, 409964), (88, 204982), (113, 159632), (176, 102491), (226, 79816), (452, 39908), (904, 19954), (907, 19888), (1243, 14512), (1808, 9977), (1814, 9944), (2486, 7256), (3628, 4972)]