21180744

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:444

約数の個数: 128

約数和(自身を含む): 66864000

約数和(自身を除く): 45683256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 19, 24, 26, 27, 36, 38, 39, 52, 54, 57, 72, 76, 78, 104, 108, 114, 117, 152, 156, 171, 216, 228, 234, 247, 312, 342, 351, 397, 456, 468, 494, 513, 684, 702, 741, 794, 936, 988, 1026, 1191, 1368, 1404, 1482, 1588, 1976, 2052, 2223, 2382, 2808, 2964, 3176, 3573, 4104, 4446, 4764, 5161, 5928, 6669, 7146, 7543, 8892, 9528, 10322, 10719, 13338, 14292, 15086, 15483, 17784, 20644, 21438, 22629, 26676, 28584, 30172, 30966, 41288, 42876, 45258, 46449, 53352, 60344, 61932, 67887, 85752, 90516, 92898, 98059, 123864, 135774, 139347, 181032, 185796, 196118, 203661, 271548, 278694, 294177, 371592, 392236, 407322, 543096, 557388, 588354, 784472, 814644, 882531, 1114776, 1176708, 1629288, 1765062, 2353416, 2647593, 3530124, 5295186, 7060248, 10590372, 21180744]

約数ペア:

[(1, 21180744), (2, 10590372), (3, 7060248), (4, 5295186), (6, 3530124), (8, 2647593), (9, 2353416), (12, 1765062), (13, 1629288), (18, 1176708), (19, 1114776), (24, 882531), (26, 814644), (27, 784472), (36, 588354), (38, 557388), (39, 543096), (52, 407322), (54, 392236), (57, 371592), (72, 294177), (76, 278694), (78, 271548), (104, 203661), (108, 196118), (114, 185796), (117, 181032), (152, 139347), (156, 135774), (171, 123864), (216, 98059), (228, 92898), (234, 90516), (247, 85752), (312, 67887), (342, 61932), (351, 60344), (397, 53352), (456, 46449), (468, 45258), (494, 42876), (513, 41288), (684, 30966), (702, 30172), (741, 28584), (794, 26676), (936, 22629), (988, 21438), (1026, 20644), (1191, 17784), (1368, 15483), (1404, 15086), (1482, 14292), (1588, 13338), (1976, 10719), (2052, 10322), (2223, 9528), (2382, 8892), (2808, 7543), (2964, 7146), (3176, 6669), (3573, 5928), (4104, 5161), (4446, 4764)]