21178008

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 61354800

約数和(自身を除く): 40176792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 113, 114, 137, 152, 171, 226, 228, 274, 339, 342, 411, 452, 456, 548, 678, 684, 822, 904, 1017, 1096, 1233, 1356, 1368, 1644, 2034, 2147, 2466, 2603, 2712, 3288, 4068, 4294, 4932, 5206, 6441, 7809, 8136, 8588, 9864, 10412, 12882, 15481, 15618, 17176, 19323, 20824, 23427, 25764, 30962, 31236, 38646, 46443, 46854, 51528, 61924, 62472, 77292, 92886, 93708, 123848, 139329, 154584, 185772, 187416, 278658, 294139, 371544, 557316, 588278, 882417, 1114632, 1176556, 1764834, 2353112, 2647251, 3529668, 5294502, 7059336, 10589004, 21178008]

約数ペア:

[(1, 21178008), (2, 10589004), (3, 7059336), (4, 5294502), (6, 3529668), (8, 2647251), (9, 2353112), (12, 1764834), (18, 1176556), (19, 1114632), (24, 882417), (36, 588278), (38, 557316), (57, 371544), (72, 294139), (76, 278658), (113, 187416), (114, 185772), (137, 154584), (152, 139329), (171, 123848), (226, 93708), (228, 92886), (274, 77292), (339, 62472), (342, 61924), (411, 51528), (452, 46854), (456, 46443), (548, 38646), (678, 31236), (684, 30962), (822, 25764), (904, 23427), (1017, 20824), (1096, 19323), (1233, 17176), (1356, 15618), (1368, 15481), (1644, 12882), (2034, 10412), (2147, 9864), (2466, 8588), (2603, 8136), (2712, 7809), (3288, 6441), (4068, 5206), (4294, 4932)]