20802968

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{1013}}^1$

素因数の和:1187

約数の個数: 32

約数和(自身を含む): 41614560

約数和(自身を除く): 20811592

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 151, 302, 604, 1013, 1208, 2026, 2567, 4052, 5134, 8104, 10268, 17221, 20536, 34442, 68884, 137768, 152963, 305926, 611852, 1223704, 2600371, 5200742, 10401484, 20802968]

約数ペア:

[(1, 20802968), (2, 10401484), (4, 5200742), (8, 2600371), (17, 1223704), (34, 611852), (68, 305926), (136, 152963), (151, 137768), (302, 68884), (604, 34442), (1013, 20536), (1208, 17221), (2026, 10268), (2567, 8104), (4052, 5134)]