19809946

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 33763968

約数和(自身を除く): 13954022

約数列:

[1, 2, 13, 23, 26, 46, 157, 211, 299, 314, 422, 598, 2041, 2743, 3611, 4082, 4853, 5486, 7222, 9706, 33127, 46943, 63089, 66254, 93886, 126178, 430651, 761921, 861302, 1523842, 9904973, 19809946]

約数ペア:

[(1, 19809946), (2, 9904973), (13, 1523842), (23, 861302), (26, 761921), (46, 430651), (157, 126178), (211, 93886), (299, 66254), (314, 63089), (422, 46943), (598, 33127), (2041, 9706), (2743, 7222), (3611, 5486), (4082, 4853)]