19843131

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 36274176

約数和(自身を除く): 16431045

約数列:

[1, 3, 7, 11, 17, 21, 31, 33, 51, 77, 93, 119, 163, 187, 217, 231, 341, 357, 489, 527, 561, 651, 1023, 1141, 1309, 1581, 1793, 2387, 2771, 3423, 3689, 3927, 5053, 5379, 5797, 7161, 8313, 11067, 12551, 15159, 17391, 19397, 30481, 35371, 37653, 40579, 55583, 58191, 85901, 91443, 106113, 121737, 166749, 213367, 257703, 389081, 601307, 640101, 944911, 1167243, 1803921, 2834733, 6614377, 19843131]

約数ペア:

[(1, 19843131), (3, 6614377), (7, 2834733), (11, 1803921), (17, 1167243), (21, 944911), (31, 640101), (33, 601307), (51, 389081), (77, 257703), (93, 213367), (119, 166749), (163, 121737), (187, 106113), (217, 91443), (231, 85901), (341, 58191), (357, 55583), (489, 40579), (527, 37653), (561, 35371), (651, 30481), (1023, 19397), (1141, 17391), (1309, 15159), (1581, 12551), (1793, 11067), (2387, 8313), (2771, 7161), (3423, 5797), (3689, 5379), (3927, 5053)]