21000299030

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1\times {\mathrm{105907}}^1$

素因数の和:106244

約数の個数: 32

約数和(自身を含む): 38431895040

約数和(自身を除く): 17431596010

約数列:

[1, 2, 5, 10, 79, 158, 251, 395, 502, 790, 1255, 2510, 19829, 39658, 99145, 105907, 198290, 211814, 529535, 1059070, 8366653, 16733306, 26582657, 41833265, 53165314, 83666530, 132913285, 265826570, 2100029903, 4200059806, 10500149515, 21000299030]

約数ペア:

[(1, 21000299030), (2, 10500149515), (5, 4200059806), (10, 2100029903), (79, 265826570), (158, 132913285), (251, 83666530), (395, 53165314), (502, 41833265), (790, 26582657), (1255, 16733306), (2510, 8366653), (19829, 1059070), (39658, 529535), (99145, 211814), (105907, 198290)]