17985737

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 23639040

約数和(自身を除く): 5653303

約数列:

[1, 7, 11, 37, 59, 77, 107, 259, 407, 413, 649, 749, 1177, 2183, 2849, 3959, 4543, 6313, 8239, 15281, 24013, 27713, 43549, 44191, 69443, 168091, 233581, 304843, 486101, 1635067, 2569391, 17985737]

約数ペア:

[(1, 17985737), (7, 2569391), (11, 1635067), (37, 486101), (59, 304843), (77, 233581), (107, 168091), (259, 69443), (407, 44191), (413, 43549), (649, 27713), (749, 24013), (1177, 15281), (2183, 8239), (2849, 6313), (3959, 4543)]