20394105

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 34076160

約数和(自身を除く): 13682055

約数列:

[1, 3, 5, 15, 29, 87, 145, 173, 271, 435, 519, 813, 865, 1355, 2595, 4065, 5017, 7859, 15051, 23577, 25085, 39295, 46883, 75255, 117885, 140649, 234415, 703245, 1359607, 4078821, 6798035, 20394105]

約数ペア:

[(1, 20394105), (3, 6798035), (5, 4078821), (15, 1359607), (29, 703245), (87, 234415), (145, 140649), (173, 117885), (271, 75255), (435, 46883), (519, 39295), (813, 25085), (865, 23577), (1355, 15051), (2595, 7859), (4065, 5017)]