19236855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 36246528

約数和(自身を除く): 17009673

約数列:

[1, 3, 5, 11, 15, 23, 33, 37, 55, 69, 111, 115, 137, 165, 185, 253, 345, 407, 411, 555, 685, 759, 851, 1221, 1265, 1507, 2035, 2055, 2553, 3151, 3795, 4255, 4521, 5069, 6105, 7535, 9361, 9453, 12765, 15207, 15755, 22605, 25345, 28083, 34661, 46805, 47265, 55759, 76035, 103983, 116587, 140415, 167277, 173305, 278795, 349761, 519915, 582935, 836385, 1282457, 1748805, 3847371, 6412285, 19236855]

約数ペア:

[(1, 19236855), (3, 6412285), (5, 3847371), (11, 1748805), (15, 1282457), (23, 836385), (33, 582935), (37, 519915), (55, 349761), (69, 278795), (111, 173305), (115, 167277), (137, 140415), (165, 116587), (185, 103983), (253, 76035), (345, 55759), (407, 47265), (411, 46805), (555, 34661), (685, 28083), (759, 25345), (851, 22605), (1221, 15755), (1265, 15207), (1507, 12765), (2035, 9453), (2055, 9361), (2553, 7535), (3151, 6105), (3795, 5069), (4255, 4521)]