21821580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 73592064

約数和(自身を除く): 51770484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 103, 107, 110, 132, 165, 180, 198, 206, 214, 220, 309, 321, 330, 396, 412, 428, 495, 515, 535, 618, 642, 660, 927, 963, 990, 1030, 1070, 1133, 1177, 1236, 1284, 1545, 1605, 1854, 1926, 1980, 2060, 2140, 2266, 2354, 3090, 3210, 3399, 3531, 3708, 3852, 4532, 4635, 4708, 4815, 5665, 5885, 6180, 6420, 6798, 7062, 9270, 9630, 10197, 10593, 11021, 11330, 11770, 13596, 14124, 16995, 17655, 18540, 19260, 20394, 21186, 22042, 22660, 23540, 33063, 33990, 35310, 40788, 42372, 44084, 50985, 52965, 55105, 66126, 67980, 70620, 99189, 101970, 105930, 110210, 121231, 132252, 165315, 198378, 203940, 211860, 220420, 242462, 330630, 363693, 396756, 484924, 495945, 606155, 661260, 727386, 991890, 1091079, 1212310, 1454772, 1818465, 1983780, 2182158, 2424620, 3636930, 4364316, 5455395, 7273860, 10910790, 21821580]

約数ペア:

[(1, 21821580), (2, 10910790), (3, 7273860), (4, 5455395), (5, 4364316), (6, 3636930), (9, 2424620), (10, 2182158), (11, 1983780), (12, 1818465), (15, 1454772), (18, 1212310), (20, 1091079), (22, 991890), (30, 727386), (33, 661260), (36, 606155), (44, 495945), (45, 484924), (55, 396756), (60, 363693), (66, 330630), (90, 242462), (99, 220420), (103, 211860), (107, 203940), (110, 198378), (132, 165315), (165, 132252), (180, 121231), (198, 110210), (206, 105930), (214, 101970), (220, 99189), (309, 70620), (321, 67980), (330, 66126), (396, 55105), (412, 52965), (428, 50985), (495, 44084), (515, 42372), (535, 40788), (618, 35310), (642, 33990), (660, 33063), (927, 23540), (963, 22660), (990, 22042), (1030, 21186), (1070, 20394), (1133, 19260), (1177, 18540), (1236, 17655), (1284, 16995), (1545, 14124), (1605, 13596), (1854, 11770), (1926, 11330), (1980, 11021), (2060, 10593), (2140, 10197), (2266, 9630), (2354, 9270), (3090, 7062), (3210, 6798), (3399, 6420), (3531, 6180), (3708, 5885), (3852, 5665), (4532, 4815), (4635, 4708)]