19915721252

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{289019}}^1$

素因数の和:289160

約数の個数: 48

約数和(自身を含む): 41951831040

約数和(自身を除く): 22036109788

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 107, 161, 214, 322, 428, 644, 749, 1498, 2461, 2996, 4922, 9844, 17227, 34454, 68908, 289019, 578038, 1156076, 2023133, 4046266, 6647437, 8092532, 13294874, 26589748, 30925033, 46532059, 61850066, 93064118, 123700132, 186128236, 216475231, 432950462, 711275759, 865900924, 1422551518, 2845103036, 4978930313, 9957860626, 19915721252]

約数ペア:

[(1, 19915721252), (2, 9957860626), (4, 4978930313), (7, 2845103036), (14, 1422551518), (23, 865900924), (28, 711275759), (46, 432950462), (92, 216475231), (107, 186128236), (161, 123700132), (214, 93064118), (322, 61850066), (428, 46532059), (644, 30925033), (749, 26589748), (1498, 13294874), (2461, 8092532), (2996, 6647437), (4922, 4046266), (9844, 2023133), (17227, 1156076), (34454, 578038), (68908, 289019)]