21267120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12659}}^1$

素因数の和:12682

約数の個数: 80

約数和(自身を含む): 75352320

約数和(自身を除く): 54085200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12659, 25318, 37977, 50636, 63295, 75954, 88613, 101272, 126590, 151908, 177226, 189885, 202544, 253180, 265839, 303816, 354452, 379770, 443065, 506360, 531678, 607632, 708904, 759540, 886130, 1012720, 1063356, 1329195, 1417808, 1519080, 1772260, 2126712, 2658390, 3038160, 3544520, 4253424, 5316780, 7089040, 10633560, 21267120]

約数ペア:

[(1, 21267120), (2, 10633560), (3, 7089040), (4, 5316780), (5, 4253424), (6, 3544520), (7, 3038160), (8, 2658390), (10, 2126712), (12, 1772260), (14, 1519080), (15, 1417808), (16, 1329195), (20, 1063356), (21, 1012720), (24, 886130), (28, 759540), (30, 708904), (35, 607632), (40, 531678), (42, 506360), (48, 443065), (56, 379770), (60, 354452), (70, 303816), (80, 265839), (84, 253180), (105, 202544), (112, 189885), (120, 177226), (140, 151908), (168, 126590), (210, 101272), (240, 88613), (280, 75954), (336, 63295), (420, 50636), (560, 37977), (840, 25318), (1680, 12659)]