21283130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1013}}^1$

素因数の和:1222

約数の個数: 32

約数和(自身を含む): 42052608

約数和(自身を除く): 20769478

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 191, 382, 955, 1013, 1910, 2026, 2101, 4202, 5065, 10130, 10505, 11143, 21010, 22286, 55715, 111430, 193483, 386966, 967415, 1934830, 2128313, 4256626, 10641565, 21283130]

約数ペア:

[(1, 21283130), (2, 10641565), (5, 4256626), (10, 2128313), (11, 1934830), (22, 967415), (55, 386966), (110, 193483), (191, 111430), (382, 55715), (955, 22286), (1013, 21010), (1910, 11143), (2026, 10505), (2101, 10130), (4202, 5065)]