21534016

素因数分解:

$2^6\times 7^1\times {\mathrm{71}}^1\times {\mathrm{677}}^1$

素因数の和:767

約数の個数: 56

約数和(自身を含む): 49597056

約数和(自身を除く): 28063040

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 142, 224, 284, 448, 497, 568, 677, 994, 1136, 1354, 1988, 2272, 2708, 3976, 4544, 4739, 5416, 7952, 9478, 10832, 15904, 18956, 21664, 31808, 37912, 43328, 48067, 75824, 96134, 151648, 192268, 303296, 336469, 384536, 672938, 769072, 1345876, 1538144, 2691752, 3076288, 5383504, 10767008, 21534016]

約数ペア:

[(1, 21534016), (2, 10767008), (4, 5383504), (7, 3076288), (8, 2691752), (14, 1538144), (16, 1345876), (28, 769072), (32, 672938), (56, 384536), (64, 336469), (71, 303296), (112, 192268), (142, 151648), (224, 96134), (284, 75824), (448, 48067), (497, 43328), (568, 37912), (677, 31808), (994, 21664), (1136, 18956), (1354, 15904), (1988, 10832), (2272, 9478), (2708, 7952), (3976, 5416), (4544, 4739)]