21565388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1811}}^1$

素因数の和:2057

約数の個数: 24

約数和(自身を含む): 40842480

約数和(自身を除く): 19277092

約数列:

[1, 2, 4, 13, 26, 52, 229, 458, 916, 1811, 2977, 3622, 5954, 7244, 11908, 23543, 47086, 94172, 414719, 829438, 1658876, 5391347, 10782694, 21565388]

約数ペア:

[(1, 21565388), (2, 10782694), (4, 5391347), (13, 1658876), (26, 829438), (52, 414719), (229, 94172), (458, 47086), (916, 23543), (1811, 11908), (2977, 7244), (3622, 5954)]