21001396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{3083}}^1$

素因数の和:3231

約数の個数: 24

約数和(自身を含む): 39894624

約数和(自身を除く): 18893228

約数列:

[1, 2, 4, 13, 26, 52, 131, 262, 524, 1703, 3083, 3406, 6166, 6812, 12332, 40079, 80158, 160316, 403873, 807746, 1615492, 5250349, 10500698, 21001396]

約数ペア:

[(1, 21001396), (2, 10500698), (4, 5250349), (13, 1615492), (26, 807746), (52, 403873), (131, 160316), (262, 80158), (524, 40079), (1703, 12332), (3083, 6812), (3406, 6166)]