21790410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 54698112

約数和(自身を除く): 32907702

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 67, 74, 111, 134, 185, 201, 222, 293, 335, 370, 402, 555, 586, 670, 879, 1005, 1110, 1465, 1758, 2010, 2479, 2930, 4395, 4958, 7437, 8790, 10841, 12395, 14874, 19631, 21682, 24790, 32523, 37185, 39262, 54205, 58893, 65046, 74370, 98155, 108410, 117786, 162615, 196310, 294465, 325230, 588930, 726347, 1452694, 2179041, 3631735, 4358082, 7263470, 10895205, 21790410]

約数ペア:

[(1, 21790410), (2, 10895205), (3, 7263470), (5, 4358082), (6, 3631735), (10, 2179041), (15, 1452694), (30, 726347), (37, 588930), (67, 325230), (74, 294465), (111, 196310), (134, 162615), (185, 117786), (201, 108410), (222, 98155), (293, 74370), (335, 65046), (370, 58893), (402, 54205), (555, 39262), (586, 37185), (670, 32523), (879, 24790), (1005, 21682), (1110, 19631), (1465, 14874), (1758, 12395), (2010, 10841), (2479, 8790), (2930, 7437), (4395, 4958)]