21006960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6733}}^1$

素因数の和:6762

約数の個数: 80

約数和(自身を含む): 70141344

約数和(自身を除く): 49134384

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6733, 13466, 20199, 26932, 33665, 40398, 53864, 67330, 80796, 87529, 100995, 107728, 134660, 161592, 175058, 201990, 262587, 269320, 323184, 350116, 403980, 437645, 525174, 538640, 700232, 807960, 875290, 1050348, 1312935, 1400464, 1615920, 1750580, 2100696, 2625870, 3501160, 4201392, 5251740, 7002320, 10503480, 21006960]

約数ペア:

[(1, 21006960), (2, 10503480), (3, 7002320), (4, 5251740), (5, 4201392), (6, 3501160), (8, 2625870), (10, 2100696), (12, 1750580), (13, 1615920), (15, 1400464), (16, 1312935), (20, 1050348), (24, 875290), (26, 807960), (30, 700232), (39, 538640), (40, 525174), (48, 437645), (52, 403980), (60, 350116), (65, 323184), (78, 269320), (80, 262587), (104, 201990), (120, 175058), (130, 161592), (156, 134660), (195, 107728), (208, 100995), (240, 87529), (260, 80796), (312, 67330), (390, 53864), (520, 40398), (624, 33665), (780, 26932), (1040, 20199), (1560, 13466), (3120, 6733)]