20928490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3119}}^1$

素因数の和:3198

約数の個数: 32

約数和(自身を含む): 41783040

約数和(自身を除く): 20854550

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 122, 305, 610, 671, 1342, 3119, 3355, 6238, 6710, 15595, 31190, 34309, 68618, 171545, 190259, 343090, 380518, 951295, 1902590, 2092849, 4185698, 10464245, 20928490]

約数ペア:

[(1, 20928490), (2, 10464245), (5, 4185698), (10, 2092849), (11, 1902590), (22, 951295), (55, 380518), (61, 343090), (110, 190259), (122, 171545), (305, 68618), (610, 34309), (671, 31190), (1342, 15595), (3119, 6710), (3355, 6238)]