21390120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59417}}^1$

素因数の和:59434

約数の個数: 48

約数和(自身を含む): 69519060

約数和(自身を除く): 48128940

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, 59417, 118834, 178251, 237668, 297085, 356502, 475336, 534753, 594170, 713004, 891255, 1069506, 1188340, 1426008, 1782510, 2139012, 2376680, 2673765, 3565020, 4278024, 5347530, 7130040, 10695060, 21390120]

約数ペア:

[(1, 21390120), (2, 10695060), (3, 7130040), (4, 5347530), (5, 4278024), (6, 3565020), (8, 2673765), (9, 2376680), (10, 2139012), (12, 1782510), (15, 1426008), (18, 1188340), (20, 1069506), (24, 891255), (30, 713004), (36, 594170), (40, 534753), (45, 475336), (60, 356502), (72, 297085), (90, 237668), (120, 178251), (180, 118834), (360, 59417)]