21000309540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1612927}}^1$

素因数の和:1612977

約数の個数: 96

約数和(自身を含む): 69368807424

約数和(自身を除く): 48368497884

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2170, 2604, 3255, 4340, 6510, 13020, 1612927, 3225854, 4838781, 6451708, 8064635, 9677562, 11290489, 16129270, 19355124, 22580978, 24193905, 32258540, 33871467, 45161956, 48387810, 50000737, 56452445, 67742934, 96775620, 100001474, 112904890, 135485868, 150002211, 169357335, 200002948, 225809780, 250003685, 300004422, 338714670, 350005159, 500007370, 600008844, 677429340, 700010318, 750011055, 1000014740, 1050015477, 1400020636, 1500022110, 1750025795, 2100030954, 3000044220, 3500051590, 4200061908, 5250077385, 7000103180, 10500154770, 21000309540]

約数ペア:

[(1, 21000309540), (2, 10500154770), (3, 7000103180), (4, 5250077385), (5, 4200061908), (6, 3500051590), (7, 3000044220), (10, 2100030954), (12, 1750025795), (14, 1500022110), (15, 1400020636), (20, 1050015477), (21, 1000014740), (28, 750011055), (30, 700010318), (31, 677429340), (35, 600008844), (42, 500007370), (60, 350005159), (62, 338714670), (70, 300004422), (84, 250003685), (93, 225809780), (105, 200002948), (124, 169357335), (140, 150002211), (155, 135485868), (186, 112904890), (210, 100001474), (217, 96775620), (310, 67742934), (372, 56452445), (420, 50000737), (434, 48387810), (465, 45161956), (620, 33871467), (651, 32258540), (868, 24193905), (930, 22580978), (1085, 19355124), (1302, 16129270), (1860, 11290489), (2170, 9677562), (2604, 8064635), (3255, 6451708), (4340, 4838781), (6510, 3225854), (13020, 1612927)]