21636990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{631}}^1$

素因数の和:774

約数の個数: 64

約数和(自身を含む): 58245120

約数和(自身を除く): 36608130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 127, 135, 254, 270, 381, 631, 635, 762, 1143, 1262, 1270, 1893, 1905, 2286, 3155, 3429, 3786, 3810, 5679, 5715, 6310, 6858, 9465, 11358, 11430, 17037, 17145, 18930, 28395, 34074, 34290, 56790, 80137, 85185, 160274, 170370, 240411, 400685, 480822, 721233, 801370, 1202055, 1442466, 2163699, 2404110, 3606165, 4327398, 7212330, 10818495, 21636990]

約数ペア:

[(1, 21636990), (2, 10818495), (3, 7212330), (5, 4327398), (6, 3606165), (9, 2404110), (10, 2163699), (15, 1442466), (18, 1202055), (27, 801370), (30, 721233), (45, 480822), (54, 400685), (90, 240411), (127, 170370), (135, 160274), (254, 85185), (270, 80137), (381, 56790), (631, 34290), (635, 34074), (762, 28395), (1143, 18930), (1262, 17145), (1270, 17037), (1893, 11430), (1905, 11358), (2286, 9465), (3155, 6858), (3429, 6310), (3786, 5715), (3810, 5679)]