21460768

素因数分解:

$2^5\times 7^1\times {\mathrm{149}}^1\times {\mathrm{643}}^1$

素因数の和:809

約数の個数: 48

約数和(自身を含む): 48686400

約数和(自身を除く): 27225632

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 149, 224, 298, 596, 643, 1043, 1192, 1286, 2086, 2384, 2572, 4172, 4501, 4768, 5144, 8344, 9002, 10288, 16688, 18004, 20576, 33376, 36008, 72016, 95807, 144032, 191614, 383228, 670649, 766456, 1341298, 1532912, 2682596, 3065824, 5365192, 10730384, 21460768]

約数ペア:

[(1, 21460768), (2, 10730384), (4, 5365192), (7, 3065824), (8, 2682596), (14, 1532912), (16, 1341298), (28, 766456), (32, 670649), (56, 383228), (112, 191614), (149, 144032), (224, 95807), (298, 72016), (596, 36008), (643, 33376), (1043, 20576), (1192, 18004), (1286, 16688), (2086, 10288), (2384, 9002), (2572, 8344), (4172, 5144), (4501, 4768)]