18759909

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 29675520

約数和(自身を除く): 10915611

約数列:

[1, 3, 7, 21, 47, 83, 141, 229, 249, 329, 581, 687, 987, 1603, 1743, 3901, 4809, 10763, 11703, 19007, 27307, 32289, 57021, 75341, 81921, 133049, 226023, 399147, 893329, 2679987, 6253303, 18759909]

約数ペア:

[(1, 18759909), (3, 6253303), (7, 2679987), (21, 893329), (47, 399147), (83, 226023), (141, 133049), (229, 81921), (249, 75341), (329, 57021), (581, 32289), (687, 27307), (987, 19007), (1603, 11703), (1743, 10763), (3901, 4809)]