18427994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 31135104

約数和(自身を除く): 12707110

約数列:

[1, 2, 13, 26, 43, 53, 86, 106, 311, 559, 622, 689, 1118, 1378, 2279, 4043, 4558, 8086, 13373, 16483, 26746, 29627, 32966, 59254, 173849, 214279, 347698, 428558, 708769, 1417538, 9213997, 18427994]

約数ペア:

[(1, 18427994), (2, 9213997), (13, 1417538), (26, 708769), (43, 428558), (53, 347698), (86, 214279), (106, 173849), (311, 59254), (559, 32966), (622, 29627), (689, 26746), (1118, 16483), (1378, 13373), (2279, 8086), (4043, 4558)]