217439684

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{705973}}^1$

素因数の和:705995

約数の個数: 24

約数和(自身を含む): 474414528

約数和(自身を除く): 256974844

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 705973, 1411946, 2823892, 4941811, 7765703, 9883622, 15531406, 19767244, 31062812, 54359921, 108719842, 217439684]

約数ペア:

[(1, 217439684), (2, 108719842), (4, 54359921), (7, 31062812), (11, 19767244), (14, 15531406), (22, 9883622), (28, 7765703), (44, 4941811), (77, 2823892), (154, 1411946), (308, 705973)]