18646004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 37255680

約数和(自身を除く): 18609676

約数列:

[1, 2, 4, 13, 26, 31, 43, 52, 62, 86, 124, 172, 269, 403, 538, 559, 806, 1076, 1118, 1333, 1612, 2236, 2666, 3497, 5332, 6994, 8339, 11567, 13988, 16678, 17329, 23134, 33356, 34658, 46268, 69316, 108407, 150371, 216814, 300742, 358577, 433628, 601484, 717154, 1434308, 4661501, 9323002, 18646004]

約数ペア:

[(1, 18646004), (2, 9323002), (4, 4661501), (13, 1434308), (26, 717154), (31, 601484), (43, 433628), (52, 358577), (62, 300742), (86, 216814), (124, 150371), (172, 108407), (269, 69316), (403, 46268), (538, 34658), (559, 33356), (806, 23134), (1076, 17329), (1118, 16678), (1333, 13988), (1612, 11567), (2236, 8339), (2666, 6994), (3497, 5332)]