21023135

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 30948480

約数和(自身を除く): 9925345

約数列:

[1, 5, 7, 17, 35, 85, 89, 119, 397, 445, 595, 623, 1513, 1985, 2779, 3115, 6749, 7565, 10591, 13895, 33745, 35333, 47243, 52955, 176665, 236215, 247331, 600661, 1236655, 3003305, 4204627, 21023135]

約数ペア:

[(1, 21023135), (5, 4204627), (7, 3003305), (17, 1236655), (35, 600661), (85, 247331), (89, 236215), (119, 176665), (397, 52955), (445, 47243), (595, 35333), (623, 33745), (1513, 13895), (1985, 10591), (2779, 7565), (3115, 6749)]