21491285764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1470797}}^1$

素因数の和:1471095

約数の個数: 24

約数和(自身を含む): 40646973528

約数和(自身を除く): 19155687764

約数列:

[1, 2, 4, 13, 26, 52, 281, 562, 1124, 3653, 7306, 14612, 1470797, 2941594, 5883188, 19120361, 38240722, 76481444, 413293957, 826587914, 1653175828, 5372821441, 10745642882, 21491285764]

約数ペア:

[(1, 21491285764), (2, 10745642882), (4, 5372821441), (13, 1653175828), (26, 826587914), (52, 413293957), (281, 76481444), (562, 38240722), (1124, 19120361), (3653, 5883188), (7306, 2941594), (14612, 1470797)]