21349684

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^2$

素因数の和:208

約数の個数: 36

約数和(自身を含む): 40192740

約数和(自身を除く): 18843056

約数列:

[1, 2, 4, 29, 41, 58, 67, 82, 116, 134, 164, 268, 1189, 1943, 2378, 2747, 3886, 4489, 4756, 5494, 7772, 8978, 10988, 17956, 79663, 130181, 159326, 184049, 260362, 318652, 368098, 520724, 736196, 5337421, 10674842, 21349684]

約数ペア:

[(1, 21349684), (2, 10674842), (4, 5337421), (29, 736196), (41, 520724), (58, 368098), (67, 318652), (82, 260362), (116, 184049), (134, 159326), (164, 130181), (268, 79663), (1189, 17956), (1943, 10988), (2378, 8978), (2747, 7772), (3886, 5494), (4489, 4756)]