19493792

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:541

約数の個数: 48

約数和(自身を含む): 40626432

約数和(自身を除く): 21132640

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 86, 124, 172, 248, 344, 457, 496, 688, 914, 992, 1333, 1376, 1828, 2666, 3656, 5332, 7312, 10664, 14167, 14624, 19651, 21328, 28334, 39302, 42656, 56668, 78604, 113336, 157208, 226672, 314416, 453344, 609181, 628832, 1218362, 2436724, 4873448, 9746896, 19493792]

約数ペア:

[(1, 19493792), (2, 9746896), (4, 4873448), (8, 2436724), (16, 1218362), (31, 628832), (32, 609181), (43, 453344), (62, 314416), (86, 226672), (124, 157208), (172, 113336), (248, 78604), (344, 56668), (457, 42656), (496, 39302), (688, 28334), (914, 21328), (992, 19651), (1333, 14624), (1376, 14167), (1828, 10664), (2666, 7312), (3656, 5332)]