66421901

素因数分解:

$7^2\times {\mathrm{13}}^3\times {\mathrm{617}}^1$

素因数の和:670

約数の個数: 24

約数和(自身を含む): 83837880

約数和(自身を除く): 17415979

約数列:

[1, 7, 13, 49, 91, 169, 617, 637, 1183, 2197, 4319, 8021, 8281, 15379, 30233, 56147, 104273, 107653, 393029, 729911, 1355549, 5109377, 9488843, 66421901]

約数ペア:

[(1, 66421901), (7, 9488843), (13, 5109377), (49, 1355549), (91, 729911), (169, 393029), (617, 107653), (637, 104273), (1183, 56147), (2197, 30233), (4319, 15379), (8021, 8281)]