21045558

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:321

約数の個数: 48

約数和(自身を含む): 45755280

約数和(自身を除く): 24709722

約数列:

[1, 2, 3, 6, 17, 34, 51, 53, 102, 106, 159, 229, 289, 318, 458, 578, 687, 867, 901, 1374, 1734, 1802, 2703, 3893, 5406, 7786, 11679, 12137, 15317, 23358, 24274, 30634, 36411, 45951, 66181, 72822, 91902, 132362, 198543, 206329, 397086, 412658, 618987, 1237974, 3507593, 7015186, 10522779, 21045558]

約数ペア:

[(1, 21045558), (2, 10522779), (3, 7015186), (6, 3507593), (17, 1237974), (34, 618987), (51, 412658), (53, 397086), (102, 206329), (106, 198543), (159, 132362), (229, 91902), (289, 72822), (318, 66181), (458, 45951), (578, 36411), (687, 30634), (867, 24274), (901, 23358), (1374, 15317), (1734, 12137), (1802, 11679), (2703, 7786), (3893, 5406)]