21215425980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1629449}}^1$

素因数の和:1629499

約数の個数: 96

約数和(自身を含む): 70079385600

約数和(自身を除く): 48863959620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2170, 2604, 3255, 4340, 6510, 13020, 1629449, 3258898, 4888347, 6517796, 8147245, 9776694, 11406143, 16294490, 19553388, 22812286, 24441735, 32588980, 34218429, 45624572, 48883470, 50512919, 57030715, 68436858, 97766940, 101025838, 114061430, 136873716, 151538757, 171092145, 202051676, 228122860, 252564595, 303077514, 342184290, 353590433, 505129190, 606155028, 684368580, 707180866, 757693785, 1010258380, 1060771299, 1414361732, 1515387570, 1767952165, 2121542598, 3030775140, 3535904330, 4243085196, 5303856495, 7071808660, 10607712990, 21215425980]

約数ペア:

[(1, 21215425980), (2, 10607712990), (3, 7071808660), (4, 5303856495), (5, 4243085196), (6, 3535904330), (7, 3030775140), (10, 2121542598), (12, 1767952165), (14, 1515387570), (15, 1414361732), (20, 1060771299), (21, 1010258380), (28, 757693785), (30, 707180866), (31, 684368580), (35, 606155028), (42, 505129190), (60, 353590433), (62, 342184290), (70, 303077514), (84, 252564595), (93, 228122860), (105, 202051676), (124, 171092145), (140, 151538757), (155, 136873716), (186, 114061430), (210, 101025838), (217, 97766940), (310, 68436858), (372, 57030715), (420, 50512919), (434, 48883470), (465, 45624572), (620, 34218429), (651, 32588980), (868, 24441735), (930, 22812286), (1085, 19553388), (1302, 16294490), (1860, 11406143), (2170, 9776694), (2604, 8147245), (3255, 6517796), (4340, 4888347), (6510, 3258898), (13020, 1629449)]