19722758

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 33730560

約数和(自身を除く): 14007802

約数列:

[1, 2, 11, 22, 31, 62, 121, 239, 242, 341, 478, 682, 1331, 2629, 2662, 3751, 5258, 7409, 7502, 14818, 28919, 41261, 57838, 81499, 82522, 162998, 318109, 636218, 896489, 1792978, 9861379, 19722758]

約数ペア:

[(1, 19722758), (2, 9861379), (11, 1792978), (22, 896489), (31, 636218), (62, 318109), (121, 162998), (239, 82522), (242, 81499), (341, 57838), (478, 41261), (682, 28919), (1331, 14818), (2629, 7502), (2662, 7409), (3751, 5258)]