81978498

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{650623}}^1$

素因数の和:650638

約数の個数: 24

約数和(自身を含む): 202994688

約数和(自身を除く): 121016190

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 650623, 1301246, 1951869, 3903738, 4554361, 5855607, 9108722, 11711214, 13663083, 27326166, 40989249, 81978498]

約数ペア:

[(1, 81978498), (2, 40989249), (3, 27326166), (6, 13663083), (7, 11711214), (9, 9108722), (14, 5855607), (18, 4554361), (21, 3903738), (42, 1951869), (63, 1301246), (126, 650623)]