21994388624

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1\times {\mathrm{3163}}^1$

素因数の和:3616

約数の個数: 80

約数和(自身を含む): 46501232064

約数和(自身を除く): 24506843440

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 101, 104, 202, 208, 331, 404, 662, 808, 1313, 1324, 1616, 2626, 2648, 3163, 4303, 5252, 5296, 6326, 8606, 10504, 12652, 17212, 21008, 25304, 33431, 34424, 41119, 50608, 66862, 68848, 82238, 133724, 164476, 267448, 319463, 328952, 434603, 534896, 638926, 657904, 869206, 1046953, 1277852, 1738412, 2093906, 2555704, 3476824, 4153019, 4187812, 5111408, 6953648, 8306038, 8375624, 13610389, 16612076, 16751248, 27220778, 33224152, 54441556, 66448304, 105742253, 108883112, 211484506, 217766224, 422969012, 845938024, 1374649289, 1691876048, 2749298578, 5498597156, 10997194312, 21994388624]

約数ペア:

[(1, 21994388624), (2, 10997194312), (4, 5498597156), (8, 2749298578), (13, 1691876048), (16, 1374649289), (26, 845938024), (52, 422969012), (101, 217766224), (104, 211484506), (202, 108883112), (208, 105742253), (331, 66448304), (404, 54441556), (662, 33224152), (808, 27220778), (1313, 16751248), (1324, 16612076), (1616, 13610389), (2626, 8375624), (2648, 8306038), (3163, 6953648), (4303, 5111408), (5252, 4187812), (5296, 4153019), (6326, 3476824), (8606, 2555704), (10504, 2093906), (12652, 1738412), (17212, 1277852), (21008, 1046953), (25304, 869206), (33431, 657904), (34424, 638926), (41119, 534896), (50608, 434603), (66862, 328952), (68848, 319463), (82238, 267448), (133724, 164476)]