18498837

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 30136320

約数和(自身を除く): 11637483

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 653, 1349, 1491, 1959, 4047, 4571, 9443, 12407, 13713, 28329, 37221, 46363, 86849, 139089, 260547, 324541, 880897, 973623, 2642691, 6166279, 18498837]

約数ペア:

[(1, 18498837), (3, 6166279), (7, 2642691), (19, 973623), (21, 880897), (57, 324541), (71, 260547), (133, 139089), (213, 86849), (399, 46363), (497, 37221), (653, 28329), (1349, 13713), (1491, 12407), (1959, 9443), (4047, 4571)]