21755648

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{4999}}^1$

素因数の和:5032

約数の個数: 36

約数和(自身を含む): 45990000

約数和(自身を除く): 24234352

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 544, 1088, 2176, 4352, 4999, 9998, 19996, 39992, 79984, 84983, 159968, 169966, 319936, 339932, 639872, 679864, 1279744, 1359728, 2719456, 5438912, 10877824, 21755648]

約数ペア:

[(1, 21755648), (2, 10877824), (4, 5438912), (8, 2719456), (16, 1359728), (17, 1279744), (32, 679864), (34, 639872), (64, 339932), (68, 319936), (128, 169966), (136, 159968), (256, 84983), (272, 79984), (544, 39992), (1088, 19996), (2176, 9998), (4352, 4999)]