21223190

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5879}}^1$

素因数の和:5924

約数の個数: 24

約数和(自身を含む): 40325040

約数和(自身を除く): 19101850

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 5879, 11758, 29395, 58790, 111701, 223402, 558505, 1117010, 2122319, 4244638, 10611595, 21223190]

約数ペア:

[(1, 21223190), (2, 10611595), (5, 4244638), (10, 2122319), (19, 1117010), (38, 558505), (95, 223402), (190, 111701), (361, 58790), (722, 29395), (1805, 11758), (3610, 5879)]