21283876

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4591}}^1$

素因数の和:4675

約数の個数: 24

約数和(自身を含む): 39858560

約数和(自身を除く): 18574684

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4591, 4636, 9182, 18364, 87229, 174458, 280051, 348916, 560102, 1120204, 5320969, 10641938, 21283876]

約数ペア:

[(1, 21283876), (2, 10641938), (4, 5320969), (19, 1120204), (38, 560102), (61, 348916), (76, 280051), (122, 174458), (244, 87229), (1159, 18364), (2318, 9182), (4591, 4636)]