21298550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:214

約数の個数: 96

約数和(自身を含む): 50663424

約数和(自身を除く): 29364874

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 31, 35, 50, 62, 65, 70, 91, 130, 151, 155, 175, 182, 217, 302, 310, 325, 350, 403, 434, 455, 650, 755, 775, 806, 910, 1057, 1085, 1510, 1550, 1963, 2015, 2114, 2170, 2275, 2821, 3775, 3926, 4030, 4550, 4681, 5285, 5425, 5642, 7550, 9362, 9815, 10075, 10570, 10850, 13741, 14105, 19630, 20150, 23405, 26425, 27482, 28210, 32767, 46810, 49075, 52850, 60853, 65534, 68705, 70525, 98150, 117025, 121706, 137410, 141050, 163835, 234050, 304265, 327670, 343525, 425971, 608530, 687050, 819175, 851942, 1521325, 1638350, 2129855, 3042650, 4259710, 10649275, 21298550]

約数ペア:

[(1, 21298550), (2, 10649275), (5, 4259710), (7, 3042650), (10, 2129855), (13, 1638350), (14, 1521325), (25, 851942), (26, 819175), (31, 687050), (35, 608530), (50, 425971), (62, 343525), (65, 327670), (70, 304265), (91, 234050), (130, 163835), (151, 141050), (155, 137410), (175, 121706), (182, 117025), (217, 98150), (302, 70525), (310, 68705), (325, 65534), (350, 60853), (403, 52850), (434, 49075), (455, 46810), (650, 32767), (755, 28210), (775, 27482), (806, 26425), (910, 23405), (1057, 20150), (1085, 19630), (1510, 14105), (1550, 13741), (1963, 10850), (2015, 10570), (2114, 10075), (2170, 9815), (2275, 9362), (2821, 7550), (3775, 5642), (3926, 5425), (4030, 5285), (4550, 4681)]