21667072

素因数分解:

$2^8\times 7^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 50331456

約数和(自身を除く): 28664384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 107, 112, 113, 128, 214, 224, 226, 256, 428, 448, 452, 749, 791, 856, 896, 904, 1498, 1582, 1712, 1792, 1808, 2996, 3164, 3424, 3616, 5992, 6328, 6848, 7232, 11984, 12091, 12656, 13696, 14464, 23968, 24182, 25312, 27392, 28928, 47936, 48364, 50624, 84637, 95872, 96728, 101248, 169274, 191744, 193456, 202496, 338548, 386912, 677096, 773824, 1354192, 1547648, 2708384, 3095296, 5416768, 10833536, 21667072]

約数ペア:

[(1, 21667072), (2, 10833536), (4, 5416768), (7, 3095296), (8, 2708384), (14, 1547648), (16, 1354192), (28, 773824), (32, 677096), (56, 386912), (64, 338548), (107, 202496), (112, 193456), (113, 191744), (128, 169274), (214, 101248), (224, 96728), (226, 95872), (256, 84637), (428, 50624), (448, 48364), (452, 47936), (749, 28928), (791, 27392), (856, 25312), (896, 24182), (904, 23968), (1498, 14464), (1582, 13696), (1712, 12656), (1792, 12091), (1808, 11984), (2996, 7232), (3164, 6848), (3424, 6328), (3616, 5992)]