221487358

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1\times {\mathrm{4001}}^1$

素因数の和:4403

約数の個数: 16

約数和(自身を含む): 337128480

約数和(自身を除く): 115641122

約数列:

[1, 2, 89, 178, 311, 622, 4001, 8002, 27679, 55358, 356089, 712178, 1244311, 2488622, 110743679, 221487358]

約数ペア:

[(1, 221487358), (2, 110743679), (89, 2488622), (178, 1244311), (311, 712178), (622, 356089), (4001, 55358), (8002, 27679)]