21753005

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{3881}}^1$

素因数の和:3964

約数の個数: 16

約数和(自身を含む): 27950400

約数和(自身を除く): 6197395

約数列:

[1, 5, 19, 59, 95, 295, 1121, 3881, 5605, 19405, 73739, 228979, 368695, 1144895, 4350601, 21753005]

約数ペア:

[(1, 21753005), (5, 4350601), (19, 1144895), (59, 368695), (95, 228979), (295, 73739), (1121, 19405), (3881, 5605)]