20733741

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 36691200

約数和(自身を除く): 15957459

約数列:

[1, 3, 7, 9, 21, 23, 41, 63, 69, 123, 161, 207, 287, 349, 369, 483, 861, 943, 1047, 1449, 2443, 2583, 2829, 3141, 6601, 7329, 8027, 8487, 14309, 19803, 21987, 24081, 42927, 56189, 59409, 72243, 100163, 128781, 168567, 300489, 329107, 505701, 901467, 987321, 2303749, 2961963, 6911247, 20733741]

約数ペア:

[(1, 20733741), (3, 6911247), (7, 2961963), (9, 2303749), (21, 987321), (23, 901467), (41, 505701), (63, 329107), (69, 300489), (123, 168567), (161, 128781), (207, 100163), (287, 72243), (349, 59409), (369, 56189), (483, 42927), (861, 24081), (943, 21987), (1047, 19803), (1449, 14309), (2443, 8487), (2583, 8027), (2829, 7329), (3141, 6601)]