18389426

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 31176576

約数和(自身を除く): 12787150

約数列:

[1, 2, 11, 22, 61, 71, 122, 142, 193, 386, 671, 781, 1342, 1562, 2123, 4246, 4331, 8662, 11773, 13703, 23546, 27406, 47641, 95282, 129503, 150733, 259006, 301466, 835883, 1671766, 9194713, 18389426]

約数ペア:

[(1, 18389426), (2, 9194713), (11, 1671766), (22, 835883), (61, 301466), (71, 259006), (122, 150733), (142, 129503), (193, 95282), (386, 47641), (671, 27406), (781, 23546), (1342, 13703), (1562, 11773), (2123, 8662), (4246, 4331)]