19138215

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 31530240

約数和(自身を除く): 12392025

約数列:

[1, 3, 5, 15, 67, 137, 139, 201, 335, 411, 417, 685, 695, 1005, 2055, 2085, 9179, 9313, 19043, 27537, 27939, 45895, 46565, 57129, 95215, 137685, 139695, 285645, 1275881, 3827643, 6379405, 19138215]

約数ペア:

[(1, 19138215), (3, 6379405), (5, 3827643), (15, 1275881), (67, 285645), (137, 139695), (139, 137685), (201, 95215), (335, 57129), (411, 46565), (417, 45895), (685, 27939), (695, 27537), (1005, 19043), (2055, 9313), (2085, 9179)]