21303190

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 39626496

約数和(自身を除く): 18323306

約数列:

[1, 2, 5, 10, 41, 82, 205, 223, 233, 410, 446, 466, 1115, 1165, 2230, 2330, 9143, 9553, 18286, 19106, 45715, 47765, 51959, 91430, 95530, 103918, 259795, 519590, 2130319, 4260638, 10651595, 21303190]

約数ペア:

[(1, 21303190), (2, 10651595), (5, 4260638), (10, 2130319), (41, 519590), (82, 259795), (205, 103918), (223, 95530), (233, 91430), (410, 51959), (446, 47765), (466, 45715), (1115, 19106), (1165, 18286), (2230, 9553), (2330, 9143)]