21128072

素因数分解:

$2^3\times 7^1\times {\mathrm{377287}}^1$

素因数の和:377300

約数の個数: 16

約数和(自身を含む): 45274560

約数和(自身を除く): 24146488

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 377287, 754574, 1509148, 2641009, 3018296, 5282018, 10564036, 21128072]

約数ペア:

[(1, 21128072), (2, 10564036), (4, 5282018), (7, 3018296), (8, 2641009), (14, 1509148), (28, 754574), (56, 377287)]