21511270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{1171}}^1$

素因数の和:1356

約数の個数: 32

約数和(自身を含む): 42529536

約数和(自身を除く): 21018266

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 167, 334, 835, 1171, 1670, 1837, 2342, 3674, 5855, 9185, 11710, 12881, 18370, 25762, 64405, 128810, 195557, 391114, 977785, 1955570, 2151127, 4302254, 10755635, 21511270]

約数ペア:

[(1, 21511270), (2, 10755635), (5, 4302254), (10, 2151127), (11, 1955570), (22, 977785), (55, 391114), (110, 195557), (167, 128810), (334, 64405), (835, 25762), (1171, 18370), (1670, 12881), (1837, 11710), (2342, 9185), (3674, 5855)]