19728338

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{347}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 35278848

約数和(自身を除く): 15550510

約数列:

[1, 2, 7, 14, 31, 62, 131, 217, 262, 347, 434, 694, 917, 1834, 2429, 4061, 4858, 8122, 10757, 21514, 28427, 45457, 56854, 75299, 90914, 150598, 318199, 636398, 1409167, 2818334, 9864169, 19728338]

約数ペア:

[(1, 19728338), (2, 9864169), (7, 2818334), (14, 1409167), (31, 636398), (62, 318199), (131, 150598), (217, 90914), (262, 75299), (347, 56854), (434, 45457), (694, 28427), (917, 21514), (1834, 10757), (2429, 8122), (4061, 4858)]