21566235

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2441}}^1$

素因数の和:2499

約数の個数: 32

約数和(自身を含む): 37509120

約数和(自身を除く): 15942885

約数列:

[1, 3, 5, 15, 19, 31, 57, 93, 95, 155, 285, 465, 589, 1767, 2441, 2945, 7323, 8835, 12205, 36615, 46379, 75671, 139137, 227013, 231895, 378355, 695685, 1135065, 1437749, 4313247, 7188745, 21566235]

約数ペア:

[(1, 21566235), (3, 7188745), (5, 4313247), (15, 1437749), (19, 1135065), (31, 695685), (57, 378355), (93, 231895), (95, 227013), (155, 139137), (285, 75671), (465, 46379), (589, 36615), (1767, 12205), (2441, 8835), (2945, 7323)]