21206584

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1049}}^1$

素因数の和:1100

約数の個数: 48

約数和(自身を含む): 48006000

約数和(自身を除く): 26799416

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 361, 532, 722, 1049, 1064, 1444, 2098, 2527, 2888, 4196, 5054, 7343, 8392, 10108, 14686, 19931, 20216, 29372, 39862, 58744, 79724, 139517, 159448, 279034, 378689, 558068, 757378, 1116136, 1514756, 2650823, 3029512, 5301646, 10603292, 21206584]

約数ペア:

[(1, 21206584), (2, 10603292), (4, 5301646), (7, 3029512), (8, 2650823), (14, 1514756), (19, 1116136), (28, 757378), (38, 558068), (56, 378689), (76, 279034), (133, 159448), (152, 139517), (266, 79724), (361, 58744), (532, 39862), (722, 29372), (1049, 20216), (1064, 19931), (1444, 14686), (2098, 10108), (2527, 8392), (2888, 7343), (4196, 5054)]