18995877

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12343}}^1$

素因数の和:12374

約数の個数: 20

約数和(自身を含む): 29872480

約数和(自身を除く): 10876603

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12343, 37029, 111087, 234517, 333261, 703551, 999783, 2110653, 6331959, 18995877]

約数ペア:

[(1, 18995877), (3, 6331959), (9, 2110653), (19, 999783), (27, 703551), (57, 333261), (81, 234517), (171, 111087), (513, 37029), (1539, 12343)]