21000252702

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1288201}}^1$

素因数の和:1288249

約数の個数: 64

約数和(自身を含む): 51940304640

約数和(自身を除く): 30940051938

約数列:

[1, 2, 3, 6, 11, 13, 19, 22, 26, 33, 38, 39, 57, 66, 78, 114, 143, 209, 247, 286, 418, 429, 494, 627, 741, 858, 1254, 1482, 2717, 5434, 8151, 16302, 1288201, 2576402, 3864603, 7729206, 14170211, 16746613, 24475819, 28340422, 33493226, 42510633, 48951638, 50239839, 73427457, 85021266, 100479678, 146854914, 184212743, 269234009, 318185647, 368425486, 538468018, 552638229, 636371294, 807702027, 954556941, 1105276458, 1615404054, 1909113882, 3500042117, 7000084234, 10500126351, 21000252702]

約数ペア:

[(1, 21000252702), (2, 10500126351), (3, 7000084234), (6, 3500042117), (11, 1909113882), (13, 1615404054), (19, 1105276458), (22, 954556941), (26, 807702027), (33, 636371294), (38, 552638229), (39, 538468018), (57, 368425486), (66, 318185647), (78, 269234009), (114, 184212743), (143, 146854914), (209, 100479678), (247, 85021266), (286, 73427457), (418, 50239839), (429, 48951638), (494, 42510633), (627, 33493226), (741, 28340422), (858, 24475819), (1254, 16746613), (1482, 14170211), (2717, 7729206), (5434, 3864603), (8151, 2576402), (16302, 1288201)]