661840886

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1\times {\mathrm{2357}}^1$

素因数の和:3044

約数の個数: 32

約数和(自身を含む): 1173491712

約数和(自身を除く): 511650826

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 647, 1294, 2357, 4529, 4714, 9058, 16499, 20057, 32998, 40114, 73067, 140399, 146134, 280798, 511469, 1022938, 1524979, 3049958, 10674853, 21349706, 47274349, 94548698, 330920443, 661840886]

約数ペア:

[(1, 661840886), (2, 330920443), (7, 94548698), (14, 47274349), (31, 21349706), (62, 10674853), (217, 3049958), (434, 1524979), (647, 1022938), (1294, 511469), (2357, 280798), (4529, 146134), (4714, 140399), (9058, 73067), (16499, 40114), (20057, 32998)]