21279354

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2557}}^1$

素因数の和:2654

約数の個数: 32

約数和(自身を含む): 45430080

約数和(自身を除く): 24150726

約数列:

[1, 2, 3, 6, 19, 38, 57, 73, 114, 146, 219, 438, 1387, 2557, 2774, 4161, 5114, 7671, 8322, 15342, 48583, 97166, 145749, 186661, 291498, 373322, 559983, 1119966, 3546559, 7093118, 10639677, 21279354]

約数ペア:

[(1, 21279354), (2, 10639677), (3, 7093118), (6, 3546559), (19, 1119966), (38, 559983), (57, 373322), (73, 291498), (114, 186661), (146, 145749), (219, 97166), (438, 48583), (1387, 15342), (2557, 8322), (2774, 7671), (4161, 5114)]