21122661

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{317}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 34191360

約数和(自身を除く): 13068699

約数列:

[1, 3, 7, 19, 21, 57, 133, 167, 317, 399, 501, 951, 1169, 2219, 3173, 3507, 6023, 6657, 9519, 18069, 22211, 42161, 52939, 66633, 126483, 158817, 370573, 1005841, 1111719, 3017523, 7040887, 21122661]

約数ペア:

[(1, 21122661), (3, 7040887), (7, 3017523), (19, 1111719), (21, 1005841), (57, 370573), (133, 158817), (167, 126483), (317, 66633), (399, 52939), (501, 42161), (951, 22211), (1169, 18069), (2219, 9519), (3173, 6657), (3507, 6023)]