21000634455

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1\times {\mathrm{99839}}^1$

素因数の和:100263

約数の個数: 32

約数和(自身を含む): 34600550400

約数和(自身を除く): 13599915945

約数列:

[1, 3, 5, 15, 37, 111, 185, 379, 555, 1137, 1895, 5685, 14023, 42069, 70115, 99839, 210345, 299517, 499195, 1497585, 3694043, 11082129, 18470215, 37838981, 55410645, 113516943, 189194905, 567584715, 1400042297, 4200126891, 7000211485, 21000634455]

約数ペア:

[(1, 21000634455), (3, 7000211485), (5, 4200126891), (15, 1400042297), (37, 567584715), (111, 189194905), (185, 113516943), (379, 55410645), (555, 37838981), (1137, 18470215), (1895, 11082129), (5685, 3694043), (14023, 1497585), (42069, 499195), (70115, 299517), (99839, 210345)]