21566520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1051}}^1$

素因数の和:1090

約数の個数: 128

約数和(自身を含む): 75744000

約数和(自身を除く): 54177480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1051, 1080, 1140, 1368, 1710, 2052, 2102, 2280, 2565, 3153, 3420, 4104, 4204, 5130, 5255, 6306, 6840, 8408, 9459, 10260, 10510, 12612, 15765, 18918, 19969, 20520, 21020, 25224, 28377, 31530, 37836, 39938, 42040, 47295, 56754, 59907, 63060, 75672, 79876, 94590, 99845, 113508, 119814, 126120, 141885, 159752, 179721, 189180, 199690, 227016, 239628, 283770, 299535, 359442, 378360, 399380, 479256, 539163, 567540, 599070, 718884, 798760, 898605, 1078326, 1135080, 1198140, 1437768, 1797210, 2156652, 2396280, 2695815, 3594420, 4313304, 5391630, 7188840, 10783260, 21566520]

約数ペア:

[(1, 21566520), (2, 10783260), (3, 7188840), (4, 5391630), (5, 4313304), (6, 3594420), (8, 2695815), (9, 2396280), (10, 2156652), (12, 1797210), (15, 1437768), (18, 1198140), (19, 1135080), (20, 1078326), (24, 898605), (27, 798760), (30, 718884), (36, 599070), (38, 567540), (40, 539163), (45, 479256), (54, 399380), (57, 378360), (60, 359442), (72, 299535), (76, 283770), (90, 239628), (95, 227016), (108, 199690), (114, 189180), (120, 179721), (135, 159752), (152, 141885), (171, 126120), (180, 119814), (190, 113508), (216, 99845), (228, 94590), (270, 79876), (285, 75672), (342, 63060), (360, 59907), (380, 56754), (456, 47295), (513, 42040), (540, 39938), (570, 37836), (684, 31530), (760, 28377), (855, 25224), (1026, 21020), (1051, 20520), (1080, 19969), (1140, 18918), (1368, 15765), (1710, 12612), (2052, 10510), (2102, 10260), (2280, 9459), (2565, 8408), (3153, 6840), (3420, 6306), (4104, 5255), (4204, 5130)]