19746272

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6781}}^1$

素因数の和:6811

約数の個数: 48

約数和(自身を含む): 47853792

約数和(自身を除く): 28107520

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 6781, 13562, 27124, 47467, 54248, 88153, 94934, 108496, 176306, 189868, 216992, 352612, 379736, 617071, 705224, 759472, 1234142, 1410448, 1518944, 2468284, 2820896, 4936568, 9873136, 19746272]

約数ペア:

[(1, 19746272), (2, 9873136), (4, 4936568), (7, 2820896), (8, 2468284), (13, 1518944), (14, 1410448), (16, 1234142), (26, 759472), (28, 705224), (32, 617071), (52, 379736), (56, 352612), (91, 216992), (104, 189868), (112, 176306), (182, 108496), (208, 94934), (224, 88153), (364, 54248), (416, 47467), (728, 27124), (1456, 13562), (2912, 6781)]