16321977

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 28304640

約数和(自身を除く): 11982663

約数列:

[1, 3, 7, 9, 21, 41, 63, 71, 89, 123, 213, 267, 287, 369, 497, 623, 639, 801, 861, 1491, 1869, 2583, 2911, 3649, 4473, 5607, 6319, 8733, 10947, 18957, 20377, 25543, 26199, 32841, 44233, 56871, 61131, 76629, 132699, 183393, 229887, 259079, 398097, 777237, 1813553, 2331711, 5440659, 16321977]

約数ペア:

[(1, 16321977), (3, 5440659), (7, 2331711), (9, 1813553), (21, 777237), (41, 398097), (63, 259079), (71, 229887), (89, 183393), (123, 132699), (213, 76629), (267, 61131), (287, 56871), (369, 44233), (497, 32841), (623, 26199), (639, 25543), (801, 20377), (861, 18957), (1491, 10947), (1869, 8733), (2583, 6319), (2911, 5607), (3649, 4473)]