21421560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178513}}^1$

素因数の和:178527

約数の個数: 32

約数和(自身を含む): 64265040

約数和(自身を除く): 42843480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178513, 357026, 535539, 714052, 892565, 1071078, 1428104, 1785130, 2142156, 2677695, 3570260, 4284312, 5355390, 7140520, 10710780, 21421560]

約数ペア:

[(1, 21421560), (2, 10710780), (3, 7140520), (4, 5355390), (5, 4284312), (6, 3570260), (8, 2677695), (10, 2142156), (12, 1785130), (15, 1428104), (20, 1071078), (24, 892565), (30, 714052), (40, 535539), (60, 357026), (120, 178513)]