21285144

素因数分解:

$2^3\times 3^2\times {\mathrm{101}}^1\times {\mathrm{2927}}^1$

素因数の和:3040

約数の個数: 48

約数和(自身を含む): 58237920

約数和(自身を除く): 36952776

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 101, 202, 303, 404, 606, 808, 909, 1212, 1818, 2424, 2927, 3636, 5854, 7272, 8781, 11708, 17562, 23416, 26343, 35124, 52686, 70248, 105372, 210744, 295627, 591254, 886881, 1182508, 1773762, 2365016, 2660643, 3547524, 5321286, 7095048, 10642572, 21285144]

約数ペア:

[(1, 21285144), (2, 10642572), (3, 7095048), (4, 5321286), (6, 3547524), (8, 2660643), (9, 2365016), (12, 1773762), (18, 1182508), (24, 886881), (36, 591254), (72, 295627), (101, 210744), (202, 105372), (303, 70248), (404, 52686), (606, 35124), (808, 26343), (909, 23416), (1212, 17562), (1818, 11708), (2424, 8781), (2927, 7272), (3636, 5854)]