21863506

素因数分解:

$2^1\times 7^4\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:216

約数の個数: 40

約数和(自身を含む): 39830220

約数和(自身を除く): 17966714

約数列:

[1, 2, 7, 14, 29, 49, 58, 98, 157, 203, 314, 343, 406, 686, 1099, 1421, 2198, 2401, 2842, 4553, 4802, 7693, 9106, 9947, 15386, 19894, 31871, 53851, 63742, 69629, 107702, 139258, 223097, 376957, 446194, 753914, 1561679, 3123358, 10931753, 21863506]

約数ペア:

[(1, 21863506), (2, 10931753), (7, 3123358), (14, 1561679), (29, 753914), (49, 446194), (58, 376957), (98, 223097), (157, 139258), (203, 107702), (314, 69629), (343, 63742), (406, 53851), (686, 31871), (1099, 19894), (1421, 15386), (2198, 9947), (2401, 9106), (2842, 7693), (4553, 4802)]