19947704

素因数分解:

$2^3\times 7^2\times {\mathrm{151}}^1\times {\mathrm{337}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 43926480

約数和(自身を除く): 23978776

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 151, 196, 302, 337, 392, 604, 674, 1057, 1208, 1348, 2114, 2359, 2696, 4228, 4718, 7399, 8456, 9436, 14798, 16513, 18872, 29596, 33026, 50887, 59192, 66052, 101774, 132104, 203548, 356209, 407096, 712418, 1424836, 2493463, 2849672, 4986926, 9973852, 19947704]

約数ペア:

[(1, 19947704), (2, 9973852), (4, 4986926), (7, 2849672), (8, 2493463), (14, 1424836), (28, 712418), (49, 407096), (56, 356209), (98, 203548), (151, 132104), (196, 101774), (302, 66052), (337, 59192), (392, 50887), (604, 33026), (674, 29596), (1057, 18872), (1208, 16513), (1348, 14798), (2114, 9436), (2359, 8456), (2696, 7399), (4228, 4718)]