21948135

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7001}}^1$

素因数の和:7039

約数の個数: 32

約数和(自身を含む): 40331520

約数和(自身を除く): 18383385

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 7001, 21003, 35005, 77011, 105015, 133019, 231033, 385055, 399057, 665095, 1155165, 1463209, 1995285, 4389627, 7316045, 21948135]

約数ペア:

[(1, 21948135), (3, 7316045), (5, 4389627), (11, 1995285), (15, 1463209), (19, 1155165), (33, 665095), (55, 399057), (57, 385055), (95, 231033), (165, 133019), (209, 105015), (285, 77011), (627, 35005), (1045, 21003), (3135, 7001)]