16856343

素因数分解:

$3^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:194

約数の個数: 60

約数和(自身を含む): 30457152

約数和(自身を除く): 13600809

約数列:

[1, 3, 7, 9, 21, 27, 31, 49, 63, 81, 93, 137, 147, 189, 217, 279, 411, 441, 567, 651, 837, 959, 1233, 1323, 1519, 1953, 2511, 2877, 3699, 3969, 4247, 4557, 5859, 6713, 8631, 11097, 12741, 13671, 17577, 20139, 25893, 29729, 38223, 41013, 60417, 77679, 89187, 114669, 123039, 181251, 208103, 267561, 344007, 543753, 624309, 802683, 1872927, 2408049, 5618781, 16856343]

約数ペア:

[(1, 16856343), (3, 5618781), (7, 2408049), (9, 1872927), (21, 802683), (27, 624309), (31, 543753), (49, 344007), (63, 267561), (81, 208103), (93, 181251), (137, 123039), (147, 114669), (189, 89187), (217, 77679), (279, 60417), (411, 41013), (441, 38223), (567, 29729), (651, 25893), (837, 20139), (959, 17577), (1233, 13671), (1323, 12741), (1519, 11097), (1953, 8631), (2511, 6713), (2877, 5859), (3699, 4557), (3969, 4247)]