21302385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3767}}^1$

素因数の和:3817

約数の個数: 32

約数和(自身を含む): 37981440

約数和(自身を除く): 16679055

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 87, 145, 195, 377, 435, 1131, 1885, 3767, 5655, 11301, 18835, 48971, 56505, 109243, 146913, 244855, 327729, 546215, 734565, 1420159, 1638645, 4260477, 7100795, 21302385]

約数ペア:

[(1, 21302385), (3, 7100795), (5, 4260477), (13, 1638645), (15, 1420159), (29, 734565), (39, 546215), (65, 327729), (87, 244855), (145, 146913), (195, 109243), (377, 56505), (435, 48971), (1131, 18835), (1885, 11301), (3767, 5655)]