21247430

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1787}}^1$

素因数の和:1864

約数の個数: 32

約数和(自身を含む): 40551840

約数和(自身を除く): 19304410

約数列:

[1, 2, 5, 10, 29, 41, 58, 82, 145, 205, 290, 410, 1189, 1787, 2378, 3574, 5945, 8935, 11890, 17870, 51823, 73267, 103646, 146534, 259115, 366335, 518230, 732670, 2124743, 4249486, 10623715, 21247430]

約数ペア:

[(1, 21247430), (2, 10623715), (5, 4249486), (10, 2124743), (29, 732670), (41, 518230), (58, 366335), (82, 259115), (145, 146534), (205, 103646), (290, 73267), (410, 51823), (1189, 17870), (1787, 11890), (2378, 8935), (3574, 5945)]