20001618

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12211}}^1$

素因数の和:12239

約数の個数: 48

約数和(自身を含む): 53342016

約数和(自身を除く): 33340398

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12211, 24422, 36633, 73266, 85477, 109899, 158743, 170954, 219798, 256431, 317486, 476229, 512862, 769293, 952458, 1111201, 1428687, 1538586, 2222402, 2857374, 3333603, 6667206, 10000809, 20001618]

約数ペア:

[(1, 20001618), (2, 10000809), (3, 6667206), (6, 3333603), (7, 2857374), (9, 2222402), (13, 1538586), (14, 1428687), (18, 1111201), (21, 952458), (26, 769293), (39, 512862), (42, 476229), (63, 317486), (78, 256431), (91, 219798), (117, 170954), (126, 158743), (182, 109899), (234, 85477), (273, 73266), (546, 36633), (819, 24422), (1638, 12211)]