21231708

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{523}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 52819200

約数和(自身を除く): 31587492

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 199, 204, 398, 523, 597, 796, 1046, 1194, 1569, 2092, 2388, 3138, 3383, 6276, 6766, 8891, 10149, 13532, 17782, 20298, 26673, 35564, 40596, 53346, 104077, 106692, 208154, 312231, 416308, 624462, 1248924, 1769309, 3538618, 5307927, 7077236, 10615854, 21231708]

約数ペア:

[(1, 21231708), (2, 10615854), (3, 7077236), (4, 5307927), (6, 3538618), (12, 1769309), (17, 1248924), (34, 624462), (51, 416308), (68, 312231), (102, 208154), (199, 106692), (204, 104077), (398, 53346), (523, 40596), (597, 35564), (796, 26673), (1046, 20298), (1194, 17782), (1569, 13532), (2092, 10149), (2388, 8891), (3138, 6766), (3383, 6276)]