21014266

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 41932800

約数和(自身を除く): 20918534

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 59, 91, 103, 118, 133, 182, 206, 247, 266, 413, 494, 721, 767, 826, 1121, 1339, 1442, 1534, 1729, 1957, 2242, 2678, 3458, 3914, 5369, 6077, 7847, 9373, 10738, 12154, 13699, 14573, 15694, 18746, 25441, 27398, 29146, 42539, 50882, 79001, 85078, 102011, 115463, 158002, 178087, 204022, 230926, 356174, 553007, 808241, 1106014, 1501019, 1616482, 3002038, 10507133, 21014266]

約数ペア:

[(1, 21014266), (2, 10507133), (7, 3002038), (13, 1616482), (14, 1501019), (19, 1106014), (26, 808241), (38, 553007), (59, 356174), (91, 230926), (103, 204022), (118, 178087), (133, 158002), (182, 115463), (206, 102011), (247, 85078), (266, 79001), (413, 50882), (494, 42539), (721, 29146), (767, 27398), (826, 25441), (1121, 18746), (1339, 15694), (1442, 14573), (1534, 13699), (1729, 12154), (1957, 10738), (2242, 9373), (2678, 7847), (3458, 6077), (3914, 5369)]