20973172

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2549}}^1$

素因数の和:2592

約数の個数: 36

約数和(自身を含む): 42732900

約数和(自身を除く): 21759728

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 121, 187, 242, 374, 484, 748, 2057, 2549, 4114, 5098, 8228, 10196, 28039, 43333, 56078, 86666, 112156, 173332, 308429, 476663, 616858, 953326, 1233716, 1906652, 5243293, 10486586, 20973172]

約数ペア:

[(1, 20973172), (2, 10486586), (4, 5243293), (11, 1906652), (17, 1233716), (22, 953326), (34, 616858), (44, 476663), (68, 308429), (121, 173332), (187, 112156), (242, 86666), (374, 56078), (484, 43333), (748, 28039), (2057, 10196), (2549, 8228), (4114, 5098)]