21137568

素因数分解:

$2^5\times 3^1\times {\mathrm{421}}^1\times {\mathrm{523}}^1$

素因数の和:957

約数の個数: 48

約数和(自身を含む): 55724256

約数和(自身を除く): 34586688

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 421, 523, 842, 1046, 1263, 1569, 1684, 2092, 2526, 3138, 3368, 4184, 5052, 6276, 6736, 8368, 10104, 12552, 13472, 16736, 20208, 25104, 40416, 50208, 220183, 440366, 660549, 880732, 1321098, 1761464, 2642196, 3522928, 5284392, 7045856, 10568784, 21137568]

約数ペア:

[(1, 21137568), (2, 10568784), (3, 7045856), (4, 5284392), (6, 3522928), (8, 2642196), (12, 1761464), (16, 1321098), (24, 880732), (32, 660549), (48, 440366), (96, 220183), (421, 50208), (523, 40416), (842, 25104), (1046, 20208), (1263, 16736), (1569, 13472), (1684, 12552), (2092, 10104), (2526, 8368), (3138, 6736), (3368, 6276), (4184, 5052)]