21617610

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{331}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 59664384

約数和(自身を除く): 38046774

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 311, 331, 622, 662, 933, 993, 1555, 1655, 1866, 1986, 2177, 2317, 3110, 3310, 4354, 4634, 4665, 4965, 6531, 6951, 9330, 9930, 10885, 11585, 13062, 13902, 21770, 23170, 32655, 34755, 65310, 69510, 102941, 205882, 308823, 514705, 617646, 720587, 1029410, 1441174, 1544115, 2161761, 3088230, 3602935, 4323522, 7205870, 10808805, 21617610]

約数ペア:

[(1, 21617610), (2, 10808805), (3, 7205870), (5, 4323522), (6, 3602935), (7, 3088230), (10, 2161761), (14, 1544115), (15, 1441174), (21, 1029410), (30, 720587), (35, 617646), (42, 514705), (70, 308823), (105, 205882), (210, 102941), (311, 69510), (331, 65310), (622, 34755), (662, 32655), (933, 23170), (993, 21770), (1555, 13902), (1655, 13062), (1866, 11585), (1986, 10885), (2177, 9930), (2317, 9330), (3110, 6951), (3310, 6531), (4354, 4965), (4634, 4665)]