20123992899

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{40289}}^1$

素因数の和:40464

約数の個数: 48

約数和(自身を含む): 32180428800

約数和(自身を除く): 12056435901

約数列:

[1, 3, 9, 19, 23, 57, 69, 127, 171, 207, 381, 437, 1143, 1311, 2413, 2921, 3933, 7239, 8763, 21717, 26289, 40289, 55499, 120867, 166497, 362601, 499491, 765491, 926647, 2296473, 2779941, 5116703, 6889419, 8339823, 15350109, 17606293, 46050327, 52818879, 97217357, 117684169, 158456637, 291652071, 353052507, 874956213, 1059157521, 2235999211, 6707997633, 20123992899]

約数ペア:

[(1, 20123992899), (3, 6707997633), (9, 2235999211), (19, 1059157521), (23, 874956213), (57, 353052507), (69, 291652071), (127, 158456637), (171, 117684169), (207, 97217357), (381, 52818879), (437, 46050327), (1143, 17606293), (1311, 15350109), (2413, 8339823), (2921, 6889419), (3933, 5116703), (7239, 2779941), (8763, 2296473), (21717, 926647), (26289, 765491), (40289, 499491), (55499, 362601), (120867, 166497)]