21955731

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{347}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 35278848

約数和(自身を除く): 13323117

約数列:

[1, 3, 7, 21, 23, 69, 131, 161, 347, 393, 483, 917, 1041, 2429, 2751, 3013, 7287, 7981, 9039, 21091, 23943, 45457, 55867, 63273, 136371, 167601, 318199, 954597, 1045511, 3136533, 7318577, 21955731]

約数ペア:

[(1, 21955731), (3, 7318577), (7, 3136533), (21, 1045511), (23, 954597), (69, 318199), (131, 167601), (161, 136371), (347, 63273), (393, 55867), (483, 45457), (917, 23943), (1041, 21091), (2429, 9039), (2751, 7981), (3013, 7287)]