18713772

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:228

約数の個数: 144

約数和(自身を含む): 60732672

約数和(自身を除く): 42018900

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 43, 44, 63, 66, 77, 84, 86, 99, 126, 129, 132, 154, 157, 172, 198, 231, 252, 258, 301, 308, 314, 387, 396, 462, 471, 473, 516, 602, 628, 693, 774, 903, 924, 942, 946, 1099, 1204, 1386, 1413, 1419, 1548, 1727, 1806, 1884, 1892, 2198, 2709, 2772, 2826, 2838, 3297, 3311, 3454, 3612, 4257, 4396, 5181, 5418, 5652, 5676, 6594, 6622, 6751, 6908, 8514, 9891, 9933, 10362, 10836, 12089, 13188, 13244, 13502, 15543, 17028, 19782, 19866, 20253, 20724, 24178, 27004, 29799, 31086, 36267, 39564, 39732, 40506, 47257, 48356, 59598, 60759, 62172, 72534, 74261, 81012, 94514, 108801, 119196, 121518, 141771, 145068, 148522, 189028, 217602, 222783, 243036, 283542, 297044, 425313, 435204, 445566, 519827, 567084, 668349, 850626, 891132, 1039654, 1336698, 1559481, 1701252, 2079308, 2673396, 3118962, 4678443, 6237924, 9356886, 18713772]

約数ペア:

[(1, 18713772), (2, 9356886), (3, 6237924), (4, 4678443), (6, 3118962), (7, 2673396), (9, 2079308), (11, 1701252), (12, 1559481), (14, 1336698), (18, 1039654), (21, 891132), (22, 850626), (28, 668349), (33, 567084), (36, 519827), (42, 445566), (43, 435204), (44, 425313), (63, 297044), (66, 283542), (77, 243036), (84, 222783), (86, 217602), (99, 189028), (126, 148522), (129, 145068), (132, 141771), (154, 121518), (157, 119196), (172, 108801), (198, 94514), (231, 81012), (252, 74261), (258, 72534), (301, 62172), (308, 60759), (314, 59598), (387, 48356), (396, 47257), (462, 40506), (471, 39732), (473, 39564), (516, 36267), (602, 31086), (628, 29799), (693, 27004), (774, 24178), (903, 20724), (924, 20253), (942, 19866), (946, 19782), (1099, 17028), (1204, 15543), (1386, 13502), (1413, 13244), (1419, 13188), (1548, 12089), (1727, 10836), (1806, 10362), (1884, 9933), (1892, 9891), (2198, 8514), (2709, 6908), (2772, 6751), (2826, 6622), (2838, 6594), (3297, 5676), (3311, 5652), (3454, 5418), (3612, 5181), (4257, 4396)]