213730990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1129}}^1\times {\mathrm{1721}}^1$

素因数の和:2868

約数の個数: 32

約数和(自身を含む): 420305760

約数和(自身を除く): 206574770

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 1129, 1721, 2258, 3442, 5645, 8605, 11290, 12419, 17210, 18931, 24838, 37862, 62095, 94655, 124190, 189310, 1943009, 3886018, 9715045, 19430090, 21373099, 42746198, 106865495, 213730990]

約数ペア:

[(1, 213730990), (2, 106865495), (5, 42746198), (10, 21373099), (11, 19430090), (22, 9715045), (55, 3886018), (110, 1943009), (1129, 189310), (1721, 124190), (2258, 94655), (3442, 62095), (5645, 37862), (8605, 24838), (11290, 18931), (12419, 17210)]