20556648

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{40787}}^1$

素因数の和:40806

約数の個数: 48

約数和(自身を含む): 63629280

約数和(自身を除く): 43072632

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 40787, 81574, 122361, 163148, 244722, 285509, 326296, 367083, 489444, 571018, 734166, 856527, 978888, 1142036, 1468332, 1713054, 2284072, 2569581, 2936664, 3426108, 5139162, 6852216, 10278324, 20556648]

約数ペア:

[(1, 20556648), (2, 10278324), (3, 6852216), (4, 5139162), (6, 3426108), (7, 2936664), (8, 2569581), (9, 2284072), (12, 1713054), (14, 1468332), (18, 1142036), (21, 978888), (24, 856527), (28, 734166), (36, 571018), (42, 489444), (56, 367083), (63, 326296), (72, 285509), (84, 244722), (126, 163148), (168, 122361), (252, 81574), (504, 40787)]