21942090

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:385

約数の個数: 80

約数和(自身を含む): 59799168

約数和(自身を除く): 37857078

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 103, 135, 162, 206, 263, 270, 309, 405, 515, 526, 618, 789, 810, 927, 1030, 1315, 1545, 1578, 1854, 2367, 2630, 2781, 3090, 3945, 4635, 4734, 5562, 7101, 7890, 8343, 9270, 11835, 13905, 14202, 16686, 21303, 23670, 27089, 27810, 35505, 41715, 42606, 54178, 71010, 81267, 83430, 106515, 135445, 162534, 213030, 243801, 270890, 406335, 487602, 731403, 812670, 1219005, 1462806, 2194209, 2438010, 3657015, 4388418, 7314030, 10971045, 21942090]

約数ペア:

[(1, 21942090), (2, 10971045), (3, 7314030), (5, 4388418), (6, 3657015), (9, 2438010), (10, 2194209), (15, 1462806), (18, 1219005), (27, 812670), (30, 731403), (45, 487602), (54, 406335), (81, 270890), (90, 243801), (103, 213030), (135, 162534), (162, 135445), (206, 106515), (263, 83430), (270, 81267), (309, 71010), (405, 54178), (515, 42606), (526, 41715), (618, 35505), (789, 27810), (810, 27089), (927, 23670), (1030, 21303), (1315, 16686), (1545, 14202), (1578, 13905), (1854, 11835), (2367, 9270), (2630, 8343), (2781, 7890), (3090, 7101), (3945, 5562), (4635, 4734)]