21338135

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2039}}^1$

素因数の和:2087

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 11562985

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1495, 2039, 2093, 10195, 10465, 14273, 26507, 46897, 71365, 132535, 185549, 234485, 328279, 609661, 927745, 1641395, 3048305, 4267627, 21338135]

約数ペア:

[(1, 21338135), (5, 4267627), (7, 3048305), (13, 1641395), (23, 927745), (35, 609661), (65, 328279), (91, 234485), (115, 185549), (161, 132535), (299, 71365), (455, 46897), (805, 26507), (1495, 14273), (2039, 10465), (2093, 10195)]