21244920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5711}}^1$

素因数の和:5756

約数の個数: 64

約数和(自身を含む): 65802240

約数和(自身を除く): 44557320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 5711, 11422, 17133, 22844, 28555, 34266, 45688, 57110, 68532, 85665, 114220, 137064, 171330, 177041, 228440, 342660, 354082, 531123, 685320, 708164, 885205, 1062246, 1416328, 1770410, 2124492, 2655615, 3540820, 4248984, 5311230, 7081640, 10622460, 21244920]

約数ペア:

[(1, 21244920), (2, 10622460), (3, 7081640), (4, 5311230), (5, 4248984), (6, 3540820), (8, 2655615), (10, 2124492), (12, 1770410), (15, 1416328), (20, 1062246), (24, 885205), (30, 708164), (31, 685320), (40, 531123), (60, 354082), (62, 342660), (93, 228440), (120, 177041), (124, 171330), (155, 137064), (186, 114220), (248, 85665), (310, 68532), (372, 57110), (465, 45688), (620, 34266), (744, 28555), (930, 22844), (1240, 17133), (1860, 11422), (3720, 5711)]