19912064

素因数分解:

$2^7\times {\mathrm{73}}^1\times {\mathrm{2131}}^1$

素因数の和:2218

約数の個数: 32

約数和(自身を含む): 40230840

約数和(自身を除く): 20318776

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 128, 146, 292, 584, 1168, 2131, 2336, 4262, 4672, 8524, 9344, 17048, 34096, 68192, 136384, 155563, 272768, 311126, 622252, 1244504, 2489008, 4978016, 9956032, 19912064]

約数ペア:

[(1, 19912064), (2, 9956032), (4, 4978016), (8, 2489008), (16, 1244504), (32, 622252), (64, 311126), (73, 272768), (128, 155563), (146, 136384), (292, 68192), (584, 34096), (1168, 17048), (2131, 9344), (2336, 8524), (4262, 4672)]