21000292740

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5555633}}^1$

素因数の和:5555658

約数の個数: 96

約数和(自身を含む): 74667720960

約数和(自身を除く): 53667428220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5555633, 11111266, 16666899, 22222532, 27778165, 33333798, 38889431, 50000697, 55556330, 66667596, 77778862, 83334495, 100001394, 111112660, 116668293, 150002091, 155557724, 166668990, 194447155, 200002788, 233336586, 250003485, 300004182, 333337980, 350004879, 388894310, 466673172, 500006970, 583341465, 600008364, 700009758, 750010455, 777788620, 1000013940, 1050014637, 1166682930, 1400019516, 1500020910, 1750024395, 2100029274, 2333365860, 3000041820, 3500048790, 4200058548, 5250073185, 7000097580, 10500146370, 21000292740]

約数ペア:

[(1, 21000292740), (2, 10500146370), (3, 7000097580), (4, 5250073185), (5, 4200058548), (6, 3500048790), (7, 3000041820), (9, 2333365860), (10, 2100029274), (12, 1750024395), (14, 1500020910), (15, 1400019516), (18, 1166682930), (20, 1050014637), (21, 1000013940), (27, 777788620), (28, 750010455), (30, 700009758), (35, 600008364), (36, 583341465), (42, 500006970), (45, 466673172), (54, 388894310), (60, 350004879), (63, 333337980), (70, 300004182), (84, 250003485), (90, 233336586), (105, 200002788), (108, 194447155), (126, 166668990), (135, 155557724), (140, 150002091), (180, 116668293), (189, 111112660), (210, 100001394), (252, 83334495), (270, 77778862), (315, 66667596), (378, 55556330), (420, 50000697), (540, 38889431), (630, 33333798), (756, 27778165), (945, 22222532), (1260, 16666899), (1890, 11111266), (3780, 5555633)]