21000663420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2153}}^1\times {\mathrm{14779}}^1$

素因数の和:16955

約数の個数: 96

約数和(自身を含む): 64181617920

約数和(自身を除く): 43180954500

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 2153, 4306, 6459, 8612, 10765, 12918, 14779, 21530, 23683, 25836, 29558, 32295, 43060, 44337, 47366, 59116, 64590, 71049, 73895, 88674, 94732, 118415, 129180, 142098, 147790, 162569, 177348, 221685, 236830, 284196, 295580, 325138, 355245, 443370, 473660, 487707, 650276, 710490, 812845, 886740, 975414, 1420980, 1625690, 1950828, 2438535, 3251380, 4877070, 9754140, 31819187, 63638374, 95457561, 127276748, 159095935, 190915122, 318191870, 350011057, 381830244, 477287805, 636383740, 700022114, 954575610, 1050033171, 1400044228, 1750055285, 1909151220, 2100066342, 3500110570, 4200132684, 5250165855, 7000221140, 10500331710, 21000663420]

約数ペア:

[(1, 21000663420), (2, 10500331710), (3, 7000221140), (4, 5250165855), (5, 4200132684), (6, 3500110570), (10, 2100066342), (11, 1909151220), (12, 1750055285), (15, 1400044228), (20, 1050033171), (22, 954575610), (30, 700022114), (33, 636383740), (44, 477287805), (55, 381830244), (60, 350011057), (66, 318191870), (110, 190915122), (132, 159095935), (165, 127276748), (220, 95457561), (330, 63638374), (660, 31819187), (2153, 9754140), (4306, 4877070), (6459, 3251380), (8612, 2438535), (10765, 1950828), (12918, 1625690), (14779, 1420980), (21530, 975414), (23683, 886740), (25836, 812845), (29558, 710490), (32295, 650276), (43060, 487707), (44337, 473660), (47366, 443370), (59116, 355245), (64590, 325138), (71049, 295580), (73895, 284196), (88674, 236830), (94732, 221685), (118415, 177348), (129180, 162569), (142098, 147790)]