20785611

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 37601280

約数和(自身を除く): 16815669

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 67, 77, 79, 119, 187, 201, 231, 237, 357, 469, 553, 561, 737, 869, 1139, 1309, 1343, 1407, 1659, 2211, 2607, 3417, 3927, 4029, 5159, 5293, 6083, 7973, 9401, 12529, 14773, 15477, 15879, 18249, 23919, 28203, 37051, 37587, 44319, 58223, 87703, 89981, 103411, 111153, 174669, 263109, 269943, 310233, 407561, 629867, 989791, 1222683, 1889601, 2969373, 6928537, 20785611]

約数ペア:

[(1, 20785611), (3, 6928537), (7, 2969373), (11, 1889601), (17, 1222683), (21, 989791), (33, 629867), (51, 407561), (67, 310233), (77, 269943), (79, 263109), (119, 174669), (187, 111153), (201, 103411), (231, 89981), (237, 87703), (357, 58223), (469, 44319), (553, 37587), (561, 37051), (737, 28203), (869, 23919), (1139, 18249), (1309, 15879), (1343, 15477), (1407, 14773), (1659, 12529), (2211, 9401), (2607, 7973), (3417, 6083), (3927, 5293), (4029, 5159)]