21031888670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1\times {\mathrm{12841}}^1$

素因数の和:13197

約数の個数: 64

約数和(自身を含む): 41863276224

約数和(自身を除く): 20831387554

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 293, 430, 559, 586, 1118, 1465, 2795, 2930, 3809, 5590, 7618, 12599, 12841, 19045, 25198, 25682, 38090, 62995, 64205, 125990, 128410, 163787, 166933, 327574, 333866, 552163, 818935, 834665, 1104326, 1637870, 1669330, 2760815, 3762413, 5521630, 7178119, 7524826, 14356238, 18812065, 35890595, 37624130, 48911369, 71781190, 97822738, 161783759, 244556845, 323567518, 489113690, 808918795, 1617837590, 2103188867, 4206377734, 10515944335, 21031888670]

約数ペア:

[(1, 21031888670), (2, 10515944335), (5, 4206377734), (10, 2103188867), (13, 1617837590), (26, 808918795), (43, 489113690), (65, 323567518), (86, 244556845), (130, 161783759), (215, 97822738), (293, 71781190), (430, 48911369), (559, 37624130), (586, 35890595), (1118, 18812065), (1465, 14356238), (2795, 7524826), (2930, 7178119), (3809, 5521630), (5590, 3762413), (7618, 2760815), (12599, 1669330), (12841, 1637870), (19045, 1104326), (25198, 834665), (25682, 818935), (38090, 552163), (62995, 333866), (64205, 327574), (125990, 166933), (128410, 163787)]