21019088504

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{7853}}^1\times {\mathrm{17609}}^1$

素因数の和:25487

約数の個数: 32

約数和(自身を含む): 41492682000

約数和(自身を除く): 20473593496

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 7853, 15706, 17609, 31412, 35218, 62824, 70436, 140872, 149207, 298414, 334571, 596828, 669142, 1193656, 1338284, 2676568, 138283477, 276566954, 553133908, 1106267816, 2627386063, 5254772126, 10509544252, 21019088504]

約数ペア:

[(1, 21019088504), (2, 10509544252), (4, 5254772126), (8, 2627386063), (19, 1106267816), (38, 553133908), (76, 276566954), (152, 138283477), (7853, 2676568), (15706, 1338284), (17609, 1193656), (31412, 669142), (35218, 596828), (62824, 334571), (70436, 298414), (140872, 149207)]