7977921

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 12718080

約数和(自身を除く): 4740159

約数列:

[1, 3, 7, 21, 47, 59, 137, 141, 177, 329, 411, 413, 959, 987, 1239, 2773, 2877, 6439, 8083, 8319, 19317, 19411, 24249, 45073, 56581, 58233, 135219, 169743, 379901, 1139703, 2659307, 7977921]

約数ペア:

[(1, 7977921), (3, 2659307), (7, 1139703), (21, 379901), (47, 169743), (59, 135219), (137, 58233), (141, 56581), (177, 45073), (329, 24249), (411, 19411), (413, 19317), (959, 8319), (987, 8083), (1239, 6439), (2773, 2877)]