21061436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{761}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 43781472

約数和(自身を除く): 22720036

約数列:

[1, 2, 4, 11, 17, 22, 34, 37, 44, 68, 74, 148, 187, 374, 407, 629, 748, 761, 814, 1258, 1522, 1628, 2516, 3044, 6919, 8371, 12937, 13838, 16742, 25874, 27676, 28157, 33484, 51748, 56314, 112628, 142307, 284614, 309727, 478669, 569228, 619454, 957338, 1238908, 1914676, 5265359, 10530718, 21061436]

約数ペア:

[(1, 21061436), (2, 10530718), (4, 5265359), (11, 1914676), (17, 1238908), (22, 957338), (34, 619454), (37, 569228), (44, 478669), (68, 309727), (74, 284614), (148, 142307), (187, 112628), (374, 56314), (407, 51748), (629, 33484), (748, 28157), (761, 27676), (814, 25874), (1258, 16742), (1522, 13838), (1628, 12937), (2516, 8371), (3044, 6919)]