2121909

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:300

約数の個数: 16

約数和(自身を含む): 2937600

約数和(自身を除く): 815691

約数列:

[1, 3, 47, 101, 141, 149, 303, 447, 4747, 7003, 14241, 15049, 21009, 45147, 707303, 2121909]

約数ペア:

[(1, 2121909), (3, 707303), (47, 45147), (101, 21009), (141, 15049), (149, 14241), (303, 7003), (447, 4747)]