21855302

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{401}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 39942720

約数和(自身を除く): 18087418

約数列:

[1, 2, 7, 14, 17, 34, 119, 229, 238, 401, 458, 802, 1603, 2807, 3206, 3893, 5614, 6817, 7786, 13634, 27251, 47719, 54502, 91829, 95438, 183658, 642803, 1285606, 1561093, 3122186, 10927651, 21855302]

約数ペア:

[(1, 21855302), (2, 10927651), (7, 3122186), (14, 1561093), (17, 1285606), (34, 642803), (119, 183658), (229, 95438), (238, 91829), (401, 54502), (458, 47719), (802, 27251), (1603, 13634), (2807, 7786), (3206, 6817), (3893, 5614)]