18740778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{3257}}^1$

素因数の和:3406

約数の個数: 32

約数和(自身を含む): 43161984

約数和(自身を除く): 24421206

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 137, 274, 411, 822, 959, 1918, 2877, 3257, 5754, 6514, 9771, 19542, 22799, 45598, 68397, 136794, 446209, 892418, 1338627, 2677254, 3123463, 6246926, 9370389, 18740778]

約数ペア:

[(1, 18740778), (2, 9370389), (3, 6246926), (6, 3123463), (7, 2677254), (14, 1338627), (21, 892418), (42, 446209), (137, 136794), (274, 68397), (411, 45598), (822, 22799), (959, 19542), (1918, 9771), (2877, 6514), (3257, 5754)]