18387621

素因数分解:

$3^3\times 7^1\times {\mathrm{271}}^1\times {\mathrm{359}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 12946779

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 271, 359, 813, 1077, 1897, 2439, 2513, 3231, 5691, 7317, 7539, 9693, 17073, 22617, 51219, 67851, 97289, 291867, 681023, 875601, 2043069, 2626803, 6129207, 18387621]

約数ペア:

[(1, 18387621), (3, 6129207), (7, 2626803), (9, 2043069), (21, 875601), (27, 681023), (63, 291867), (189, 97289), (271, 67851), (359, 51219), (813, 22617), (1077, 17073), (1897, 9693), (2439, 7539), (2513, 7317), (3231, 5691)]