210621879

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 355079088

約数和(自身を除く): 144457209

約数列:

[1, 3, 9, 13, 23, 39, 41, 69, 83, 117, 123, 207, 249, 299, 369, 529, 533, 747, 897, 943, 1079, 1587, 1599, 1909, 2691, 2829, 3237, 3403, 4761, 4797, 5727, 6877, 8487, 9711, 10209, 12259, 17181, 20631, 21689, 24817, 30627, 36777, 43907, 44239, 61893, 65067, 74451, 78269, 110331, 131721, 132717, 195201, 223353, 234807, 281957, 395163, 398151, 570791, 704421, 845871, 1017497, 1712373, 1800187, 2537613, 3052491, 5137119, 5400561, 9157473, 16201683, 23402431, 70207293, 210621879]

約数ペア:

[(1, 210621879), (3, 70207293), (9, 23402431), (13, 16201683), (23, 9157473), (39, 5400561), (41, 5137119), (69, 3052491), (83, 2537613), (117, 1800187), (123, 1712373), (207, 1017497), (249, 845871), (299, 704421), (369, 570791), (529, 398151), (533, 395163), (747, 281957), (897, 234807), (943, 223353), (1079, 195201), (1587, 132717), (1599, 131721), (1909, 110331), (2691, 78269), (2829, 74451), (3237, 65067), (3403, 61893), (4761, 44239), (4797, 43907), (5727, 36777), (6877, 30627), (8487, 24817), (9711, 21689), (10209, 20631), (12259, 17181)]