21628688

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71147}}^1$

素因数の和:71174

約数の個数: 20

約数和(自身を含む): 44111760

約数和(自身を除く): 22483072

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71147, 142294, 284588, 569176, 1138352, 1351793, 2703586, 5407172, 10814344, 21628688]

約数ペア:

[(1, 21628688), (2, 10814344), (4, 5407172), (8, 2703586), (16, 1351793), (19, 1138352), (38, 569176), (76, 284588), (152, 142294), (304, 71147)]