21418680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178489}}^1$

素因数の和:178503

約数の個数: 32

約数和(自身を含む): 64256400

約数和(自身を除く): 42837720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178489, 356978, 535467, 713956, 892445, 1070934, 1427912, 1784890, 2141868, 2677335, 3569780, 4283736, 5354670, 7139560, 10709340, 21418680]

約数ペア:

[(1, 21418680), (2, 10709340), (3, 7139560), (4, 5354670), (5, 4283736), (6, 3569780), (8, 2677335), (10, 2141868), (12, 1784890), (15, 1427912), (20, 1070934), (24, 892445), (30, 713956), (40, 535467), (60, 356978), (120, 178489)]