21658238

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:197

約数の個数: 48

約数和(自身を含む): 40582944

約数和(自身を除く): 18924706

約数列:

[1, 2, 7, 14, 17, 34, 53, 101, 106, 119, 202, 238, 289, 371, 578, 707, 742, 901, 1414, 1717, 1802, 2023, 3434, 4046, 5353, 6307, 10706, 12019, 12614, 15317, 24038, 29189, 30634, 37471, 58378, 74942, 91001, 107219, 182002, 204323, 214438, 408646, 637007, 1274014, 1547017, 3094034, 10829119, 21658238]

約数ペア:

[(1, 21658238), (2, 10829119), (7, 3094034), (14, 1547017), (17, 1274014), (34, 637007), (53, 408646), (101, 214438), (106, 204323), (119, 182002), (202, 107219), (238, 91001), (289, 74942), (371, 58378), (578, 37471), (707, 30634), (742, 29189), (901, 24038), (1414, 15317), (1717, 12614), (1802, 12019), (2023, 10706), (3434, 6307), (4046, 5353)]