2019980781

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{63241}}^1$

素因数の和:63283

約数の個数: 48

約数和(自身を含む): 3703451520

約数和(自身を除く): 1683470739

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 169, 189, 273, 351, 507, 819, 1183, 1521, 2457, 3549, 4563, 10647, 31941, 63241, 189723, 442687, 569169, 822133, 1328061, 1707507, 2466399, 3984183, 5754931, 7399197, 10687729, 11952549, 17264793, 22197591, 32063187, 51794379, 74814103, 96189561, 155383137, 224442309, 288568683, 673326927, 2019980781]

約数ペア:

[(1, 2019980781), (3, 673326927), (7, 288568683), (9, 224442309), (13, 155383137), (21, 96189561), (27, 74814103), (39, 51794379), (63, 32063187), (91, 22197591), (117, 17264793), (169, 11952549), (189, 10687729), (273, 7399197), (351, 5754931), (507, 3984183), (819, 2466399), (1183, 1707507), (1521, 1328061), (2457, 822133), (3549, 569169), (4563, 442687), (10647, 189723), (31941, 63241)]