19974526

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{331}}^1$

素因数の和:568

約数の個数: 32

約数和(自身を含む): 35473536

約数和(自身を除く): 15499010

約数列:

[1, 2, 11, 13, 22, 26, 143, 211, 286, 331, 422, 662, 2321, 2743, 3641, 4303, 4642, 5486, 7282, 8606, 30173, 47333, 60346, 69841, 94666, 139682, 768251, 907933, 1536502, 1815866, 9987263, 19974526]

約数ペア:

[(1, 19974526), (2, 9987263), (11, 1815866), (13, 1536502), (22, 907933), (26, 768251), (143, 139682), (211, 94666), (286, 69841), (331, 60346), (422, 47333), (662, 30173), (2321, 8606), (2743, 7282), (3641, 5486), (4303, 4642)]