1900979787

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1240039}}^1$

素因数の和:1240122

約数の個数: 16

約数和(自身を含む): 2936414720

約数和(自身を除く): 1035434933

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 1240039, 3720117, 8680273, 26040819, 90522847, 271568541, 633659929, 1900979787]

約数ペア:

[(1, 1900979787), (3, 633659929), (7, 271568541), (21, 90522847), (73, 26040819), (219, 8680273), (511, 3720117), (1533, 1240039)]