21017906

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5021}}^1$

素因数の和:5066

約数の個数: 32

約数和(自身を含む): 40497408

約数和(自身を除く): 19479502

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 91, 161, 182, 299, 322, 598, 2093, 4186, 5021, 10042, 35147, 65273, 70294, 115483, 130546, 230966, 456911, 808381, 913822, 1501279, 1616762, 3002558, 10508953, 21017906]

約数ペア:

[(1, 21017906), (2, 10508953), (7, 3002558), (13, 1616762), (14, 1501279), (23, 913822), (26, 808381), (46, 456911), (91, 230966), (161, 130546), (182, 115483), (299, 70294), (322, 65273), (598, 35147), (2093, 10042), (4186, 5021)]