21318466

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 14243774

約数列:

[1, 2, 13, 26, 79, 97, 107, 158, 194, 214, 1027, 1261, 1391, 2054, 2522, 2782, 7663, 8453, 10379, 15326, 16906, 20758, 99619, 109889, 134927, 199238, 219778, 269854, 819941, 1639882, 10659233, 21318466]

約数ペア:

[(1, 21318466), (2, 10659233), (13, 1639882), (26, 819941), (79, 269854), (97, 219778), (107, 199238), (158, 134927), (194, 109889), (214, 99619), (1027, 20758), (1261, 16906), (1391, 15326), (2054, 10379), (2522, 8453), (2782, 7663)]