21145950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^3\times {\mathrm{137}}^1$

素因数の和:176

約数の個数: 144

約数和(自身を含む): 66736800

約数和(自身を除く): 45590850

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 49, 50, 63, 70, 75, 90, 98, 105, 126, 137, 147, 150, 175, 210, 225, 245, 274, 294, 315, 343, 350, 411, 441, 450, 490, 525, 630, 685, 686, 735, 822, 882, 959, 1029, 1050, 1225, 1233, 1370, 1470, 1575, 1715, 1918, 2055, 2058, 2205, 2450, 2466, 2877, 3087, 3150, 3425, 3430, 3675, 4110, 4410, 4795, 5145, 5754, 6165, 6174, 6713, 6850, 7350, 8575, 8631, 9590, 10275, 10290, 11025, 12330, 13426, 14385, 15435, 17150, 17262, 20139, 20550, 22050, 23975, 25725, 28770, 30825, 30870, 33565, 40278, 43155, 46991, 47950, 51450, 60417, 61650, 67130, 71925, 77175, 86310, 93982, 100695, 120834, 140973, 143850, 154350, 167825, 201390, 215775, 234955, 281946, 302085, 335650, 422919, 431550, 469910, 503475, 604170, 704865, 845838, 1006950, 1174775, 1409730, 1510425, 2114595, 2349550, 3020850, 3524325, 4229190, 7048650, 10572975, 21145950]

約数ペア:

[(1, 21145950), (2, 10572975), (3, 7048650), (5, 4229190), (6, 3524325), (7, 3020850), (9, 2349550), (10, 2114595), (14, 1510425), (15, 1409730), (18, 1174775), (21, 1006950), (25, 845838), (30, 704865), (35, 604170), (42, 503475), (45, 469910), (49, 431550), (50, 422919), (63, 335650), (70, 302085), (75, 281946), (90, 234955), (98, 215775), (105, 201390), (126, 167825), (137, 154350), (147, 143850), (150, 140973), (175, 120834), (210, 100695), (225, 93982), (245, 86310), (274, 77175), (294, 71925), (315, 67130), (343, 61650), (350, 60417), (411, 51450), (441, 47950), (450, 46991), (490, 43155), (525, 40278), (630, 33565), (685, 30870), (686, 30825), (735, 28770), (822, 25725), (882, 23975), (959, 22050), (1029, 20550), (1050, 20139), (1225, 17262), (1233, 17150), (1370, 15435), (1470, 14385), (1575, 13426), (1715, 12330), (1918, 11025), (2055, 10290), (2058, 10275), (2205, 9590), (2450, 8631), (2466, 8575), (2877, 7350), (3087, 6850), (3150, 6713), (3425, 6174), (3430, 6165), (3675, 5754), (4110, 5145), (4410, 4795)]