20746732

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:306

約数の個数: 36

約数和(自身を含む): 39146184

約数和(自身を除く): 18399452

約数列:

[1, 2, 4, 17, 34, 68, 131, 137, 262, 274, 289, 524, 548, 578, 1156, 2227, 2329, 4454, 4658, 8908, 9316, 17947, 35894, 37859, 39593, 71788, 75718, 79186, 151436, 158372, 305099, 610198, 1220396, 5186683, 10373366, 20746732]

約数ペア:

[(1, 20746732), (2, 10373366), (4, 5186683), (17, 1220396), (34, 610198), (68, 305099), (131, 158372), (137, 151436), (262, 79186), (274, 75718), (289, 71788), (524, 39593), (548, 37859), (578, 35894), (1156, 17947), (2227, 9316), (2329, 8908), (4454, 4658)]