21488510

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3083}}^1$

素因数の和:3148

約数の個数: 32

約数和(自身を含む): 41967072

約数和(自身を除く): 20478562

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 410, 697, 1394, 3083, 3485, 6166, 6970, 15415, 30830, 52411, 104822, 126403, 252806, 262055, 524110, 632015, 1264030, 2148851, 4297702, 10744255, 21488510]

約数ペア:

[(1, 21488510), (2, 10744255), (5, 4297702), (10, 2148851), (17, 1264030), (34, 632015), (41, 524110), (82, 262055), (85, 252806), (170, 126403), (205, 104822), (410, 52411), (697, 30830), (1394, 15415), (3083, 6970), (3485, 6166)]