21369075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 45330432

約数和(自身を除く): 23961357

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 31, 35, 39, 65, 75, 91, 93, 101, 105, 155, 175, 195, 217, 273, 303, 325, 403, 455, 465, 505, 525, 651, 707, 775, 975, 1085, 1209, 1313, 1365, 1515, 2015, 2121, 2275, 2325, 2525, 2821, 3131, 3255, 3535, 3939, 5425, 6045, 6565, 6825, 7575, 8463, 9191, 9393, 10075, 10605, 14105, 15655, 16275, 17675, 19695, 21917, 27573, 30225, 32825, 40703, 42315, 45955, 46965, 53025, 65751, 70525, 78275, 98475, 109585, 122109, 137865, 203515, 211575, 229775, 234825, 284921, 328755, 547925, 610545, 689325, 854763, 1017575, 1424605, 1643775, 3052725, 4273815, 7123025, 21369075]

約数ペア:

[(1, 21369075), (3, 7123025), (5, 4273815), (7, 3052725), (13, 1643775), (15, 1424605), (21, 1017575), (25, 854763), (31, 689325), (35, 610545), (39, 547925), (65, 328755), (75, 284921), (91, 234825), (93, 229775), (101, 211575), (105, 203515), (155, 137865), (175, 122109), (195, 109585), (217, 98475), (273, 78275), (303, 70525), (325, 65751), (403, 53025), (455, 46965), (465, 45955), (505, 42315), (525, 40703), (651, 32825), (707, 30225), (775, 27573), (975, 21917), (1085, 19695), (1209, 17675), (1313, 16275), (1365, 15655), (1515, 14105), (2015, 10605), (2121, 10075), (2275, 9393), (2325, 9191), (2525, 8463), (2821, 7575), (3131, 6825), (3255, 6565), (3535, 6045), (3939, 5425)]