25012911

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 45158400

約数和(自身を除く): 20145489

約数列:

[1, 3, 7, 11, 19, 21, 33, 41, 57, 77, 123, 133, 139, 209, 231, 287, 399, 417, 451, 627, 779, 861, 973, 1353, 1463, 1529, 2337, 2641, 2919, 3157, 4389, 4587, 5453, 5699, 7923, 8569, 9471, 10703, 16359, 17097, 18487, 25707, 29051, 32109, 39893, 55461, 59983, 62689, 87153, 108281, 119679, 179949, 188067, 203357, 324843, 438823, 610071, 757967, 1191091, 1316469, 2273901, 3573273, 8337637, 25012911]

約数ペア:

[(1, 25012911), (3, 8337637), (7, 3573273), (11, 2273901), (19, 1316469), (21, 1191091), (33, 757967), (41, 610071), (57, 438823), (77, 324843), (123, 203357), (133, 188067), (139, 179949), (209, 119679), (231, 108281), (287, 87153), (399, 62689), (417, 59983), (451, 55461), (627, 39893), (779, 32109), (861, 29051), (973, 25707), (1353, 18487), (1463, 17097), (1529, 16359), (2337, 10703), (2641, 9471), (2919, 8569), (3157, 7923), (4389, 5699), (4587, 5453)]