20547268

素因数分解:

$2^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1327}}^1$

素因数の和:1424

約数の個数: 36

約数和(自身を含む): 42389760

約数和(自身を除く): 21842492

約数列:

[1, 2, 4, 7, 14, 28, 49, 79, 98, 158, 196, 316, 553, 1106, 1327, 2212, 2654, 3871, 5308, 7742, 9289, 15484, 18578, 37156, 65023, 104833, 130046, 209666, 260092, 419332, 733831, 1467662, 2935324, 5136817, 10273634, 20547268]

約数ペア:

[(1, 20547268), (2, 10273634), (4, 5136817), (7, 2935324), (14, 1467662), (28, 733831), (49, 419332), (79, 260092), (98, 209666), (158, 130046), (196, 104833), (316, 65023), (553, 37156), (1106, 18578), (1327, 15484), (2212, 9289), (2654, 7742), (3871, 5308)]