31371788

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{12589}}^1$

素因数の和:12689

約数の個数: 24

約数和(自身を含む): 63453600

約数和(自身を除く): 32081812

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 12589, 25178, 50356, 88123, 176246, 352492, 1120421, 2240842, 4481684, 7842947, 15685894, 31371788]

約数ペア:

[(1, 31371788), (2, 15685894), (4, 7842947), (7, 4481684), (14, 2240842), (28, 1120421), (89, 352492), (178, 176246), (356, 88123), (623, 50356), (1246, 25178), (2492, 12589)]