21038040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58439}}^1$

素因数の和:58456

約数の個数: 48

約数和(自身を含む): 68374800

約数和(自身を除く): 47336760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 58439, 116878, 175317, 233756, 292195, 350634, 467512, 525951, 584390, 701268, 876585, 1051902, 1168780, 1402536, 1753170, 2103804, 2337560, 2629755, 3506340, 4207608, 5259510, 7012680, 10519020, 21038040]

約数ペア:

[(1, 21038040), (2, 10519020), (3, 7012680), (4, 5259510), (5, 4207608), (6, 3506340), (8, 2629755), (9, 2337560), (10, 2103804), (12, 1753170), (15, 1402536), (18, 1168780), (20, 1051902), (24, 876585), (30, 701268), (36, 584390), (40, 525951), (45, 467512), (60, 350634), (72, 292195), (90, 233756), (120, 175317), (180, 116878), (360, 58439)]