21799380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{863}}^1$

素因数の和:1296

約数の個数: 48

約数和(自身を含む): 61254144

約数和(自身を除く): 39454764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 421, 842, 863, 1263, 1684, 1726, 2105, 2526, 2589, 3452, 4210, 4315, 5052, 5178, 6315, 8420, 8630, 10356, 12630, 12945, 17260, 25260, 25890, 51780, 363323, 726646, 1089969, 1453292, 1816615, 2179938, 3633230, 4359876, 5449845, 7266460, 10899690, 21799380]

約数ペア:

[(1, 21799380), (2, 10899690), (3, 7266460), (4, 5449845), (5, 4359876), (6, 3633230), (10, 2179938), (12, 1816615), (15, 1453292), (20, 1089969), (30, 726646), (60, 363323), (421, 51780), (842, 25890), (863, 25260), (1263, 17260), (1684, 12945), (1726, 12630), (2105, 10356), (2526, 8630), (2589, 8420), (3452, 6315), (4210, 5178), (4315, 5052)]