19928954

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1\times {\mathrm{821}}^1$

素因数の和:1105

約数の個数: 16

約数和(自身を含む): 30627720

約数和(自身を除く): 10698766

約数列:

[1, 2, 53, 106, 229, 458, 821, 1642, 12137, 24274, 43513, 87026, 188009, 376018, 9964477, 19928954]

約数ペア:

[(1, 19928954), (2, 9964477), (53, 376018), (106, 188009), (229, 87026), (458, 43513), (821, 24274), (1642, 12137)]