18397995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{937}}^1$

素因数の和:980

約数の個数: 64

約数和(自身を含む): 38900736

約数和(自身を除く): 20502741

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 231, 255, 357, 385, 561, 595, 935, 937, 1155, 1309, 1785, 2805, 2811, 3927, 4685, 6545, 6559, 10307, 14055, 15929, 19635, 19677, 30921, 32795, 47787, 51535, 72149, 79645, 98385, 111503, 154605, 175219, 216447, 238935, 334509, 360745, 525657, 557515, 876095, 1082235, 1226533, 1672545, 2628285, 3679599, 6132665, 18397995]

約数ペア:

[(1, 18397995), (3, 6132665), (5, 3679599), (7, 2628285), (11, 1672545), (15, 1226533), (17, 1082235), (21, 876095), (33, 557515), (35, 525657), (51, 360745), (55, 334509), (77, 238935), (85, 216447), (105, 175219), (119, 154605), (165, 111503), (187, 98385), (231, 79645), (255, 72149), (357, 51535), (385, 47787), (561, 32795), (595, 30921), (935, 19677), (937, 19635), (1155, 15929), (1309, 14055), (1785, 10307), (2805, 6559), (2811, 6545), (3927, 4685)]