21541896

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:244

約数の個数: 128

約数和(自身を含む): 65520000

約数和(自身を除く): 43978104

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 29, 36, 38, 54, 57, 58, 72, 76, 87, 108, 114, 116, 152, 171, 174, 181, 216, 228, 232, 261, 342, 348, 362, 456, 513, 522, 543, 551, 684, 696, 724, 783, 1026, 1044, 1086, 1102, 1368, 1448, 1566, 1629, 1653, 2052, 2088, 2172, 2204, 3132, 3258, 3306, 3439, 4104, 4344, 4408, 4887, 4959, 5249, 6264, 6516, 6612, 6878, 9774, 9918, 10317, 10498, 13032, 13224, 13756, 14877, 15747, 19548, 19836, 20634, 20996, 27512, 29754, 30951, 31494, 39096, 39672, 41268, 41992, 47241, 59508, 61902, 62988, 82536, 92853, 94482, 99731, 119016, 123804, 125976, 141723, 185706, 188964, 199462, 247608, 283446, 299193, 371412, 377928, 398924, 566892, 598386, 742824, 797848, 897579, 1133784, 1196772, 1795158, 2393544, 2692737, 3590316, 5385474, 7180632, 10770948, 21541896]

約数ペア:

[(1, 21541896), (2, 10770948), (3, 7180632), (4, 5385474), (6, 3590316), (8, 2692737), (9, 2393544), (12, 1795158), (18, 1196772), (19, 1133784), (24, 897579), (27, 797848), (29, 742824), (36, 598386), (38, 566892), (54, 398924), (57, 377928), (58, 371412), (72, 299193), (76, 283446), (87, 247608), (108, 199462), (114, 188964), (116, 185706), (152, 141723), (171, 125976), (174, 123804), (181, 119016), (216, 99731), (228, 94482), (232, 92853), (261, 82536), (342, 62988), (348, 61902), (362, 59508), (456, 47241), (513, 41992), (522, 41268), (543, 39672), (551, 39096), (684, 31494), (696, 30951), (724, 29754), (783, 27512), (1026, 20996), (1044, 20634), (1086, 19836), (1102, 19548), (1368, 15747), (1448, 14877), (1566, 13756), (1629, 13224), (1653, 13032), (2052, 10498), (2088, 10317), (2172, 9918), (2204, 9774), (3132, 6878), (3258, 6612), (3306, 6516), (3439, 6264), (4104, 5249), (4344, 4959), (4408, 4887)]