21175920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29411}}^1$

素因数の和:29430

約数の個数: 60

約数和(自身を含む): 71118216

約数和(自身を除く): 49942296

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29411, 58822, 88233, 117644, 147055, 176466, 235288, 264699, 294110, 352932, 441165, 470576, 529398, 588220, 705864, 882330, 1058796, 1176440, 1323495, 1411728, 1764660, 2117592, 2352880, 2646990, 3529320, 4235184, 5293980, 7058640, 10587960, 21175920]

約数ペア:

[(1, 21175920), (2, 10587960), (3, 7058640), (4, 5293980), (5, 4235184), (6, 3529320), (8, 2646990), (9, 2352880), (10, 2117592), (12, 1764660), (15, 1411728), (16, 1323495), (18, 1176440), (20, 1058796), (24, 882330), (30, 705864), (36, 588220), (40, 529398), (45, 470576), (48, 441165), (60, 352932), (72, 294110), (80, 264699), (90, 235288), (120, 176466), (144, 147055), (180, 117644), (240, 88233), (360, 58822), (720, 29411)]