21828120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1801}}^1$

素因数の和:1916

約数の個数: 64

約数和(自身を含む): 66169440

約数和(自身を除く): 44341320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 101, 120, 202, 303, 404, 505, 606, 808, 1010, 1212, 1515, 1801, 2020, 2424, 3030, 3602, 4040, 5403, 6060, 7204, 9005, 10806, 12120, 14408, 18010, 21612, 27015, 36020, 43224, 54030, 72040, 108060, 181901, 216120, 363802, 545703, 727604, 909505, 1091406, 1455208, 1819010, 2182812, 2728515, 3638020, 4365624, 5457030, 7276040, 10914060, 21828120]

約数ペア:

[(1, 21828120), (2, 10914060), (3, 7276040), (4, 5457030), (5, 4365624), (6, 3638020), (8, 2728515), (10, 2182812), (12, 1819010), (15, 1455208), (20, 1091406), (24, 909505), (30, 727604), (40, 545703), (60, 363802), (101, 216120), (120, 181901), (202, 108060), (303, 72040), (404, 54030), (505, 43224), (606, 36020), (808, 27015), (1010, 21612), (1212, 18010), (1515, 14408), (1801, 12120), (2020, 10806), (2424, 9005), (3030, 7204), (3602, 6060), (4040, 5403)]