21343860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{419}}^1$

素因数の和:717

約数の個数: 72

約数和(自身を含む): 65126880

約数和(自身を除く): 43783020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 283, 419, 566, 838, 849, 1132, 1257, 1415, 1676, 1698, 2095, 2514, 2547, 2830, 3396, 3771, 4190, 4245, 5028, 5094, 5660, 6285, 7542, 8380, 8490, 10188, 12570, 12735, 15084, 16980, 18855, 25140, 25470, 37710, 50940, 75420, 118577, 237154, 355731, 474308, 592885, 711462, 1067193, 1185770, 1422924, 1778655, 2134386, 2371540, 3557310, 4268772, 5335965, 7114620, 10671930, 21343860]

約数ペア:

[(1, 21343860), (2, 10671930), (3, 7114620), (4, 5335965), (5, 4268772), (6, 3557310), (9, 2371540), (10, 2134386), (12, 1778655), (15, 1422924), (18, 1185770), (20, 1067193), (30, 711462), (36, 592885), (45, 474308), (60, 355731), (90, 237154), (180, 118577), (283, 75420), (419, 50940), (566, 37710), (838, 25470), (849, 25140), (1132, 18855), (1257, 16980), (1415, 15084), (1676, 12735), (1698, 12570), (2095, 10188), (2514, 8490), (2547, 8380), (2830, 7542), (3396, 6285), (3771, 5660), (4190, 5094), (4245, 5028)]