21819568

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{827}}^1$

素因数の和:949

約数の個数: 40

約数和(自身を含む): 45278352

約数和(自身を除く): 23458784

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 97, 136, 194, 272, 388, 776, 827, 1552, 1649, 1654, 3298, 3308, 6596, 6616, 13192, 13232, 14059, 26384, 28118, 56236, 80219, 112472, 160438, 224944, 320876, 641752, 1283504, 1363723, 2727446, 5454892, 10909784, 21819568]

約数ペア:

[(1, 21819568), (2, 10909784), (4, 5454892), (8, 2727446), (16, 1363723), (17, 1283504), (34, 641752), (68, 320876), (97, 224944), (136, 160438), (194, 112472), (272, 80219), (388, 56236), (776, 28118), (827, 26384), (1552, 14059), (1649, 13232), (1654, 13192), (3298, 6616), (3308, 6596)]