19877696

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:319

約数の個数: 56

約数和(自身を含む): 41842944

約数和(自身を除く): 21965248

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 64, 86, 124, 172, 233, 248, 344, 466, 496, 688, 932, 992, 1333, 1376, 1864, 1984, 2666, 2752, 3728, 5332, 7223, 7456, 10019, 10664, 14446, 14912, 20038, 21328, 28892, 40076, 42656, 57784, 80152, 85312, 115568, 160304, 231136, 310589, 320608, 462272, 621178, 641216, 1242356, 2484712, 4969424, 9938848, 19877696]

約数ペア:

[(1, 19877696), (2, 9938848), (4, 4969424), (8, 2484712), (16, 1242356), (31, 641216), (32, 621178), (43, 462272), (62, 320608), (64, 310589), (86, 231136), (124, 160304), (172, 115568), (233, 85312), (248, 80152), (344, 57784), (466, 42656), (496, 40076), (688, 28892), (932, 21328), (992, 20038), (1333, 14912), (1376, 14446), (1864, 10664), (1984, 10019), (2666, 7456), (2752, 7223), (3728, 5332)]