20039481

素因数分解:

$3^7\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1$

素因数の和:63

約数の個数: 96

約数和(自身を含む): 40383360

約数和(自身を除く): 20343879

約数列:

[1, 3, 7, 9, 11, 17, 21, 27, 33, 49, 51, 63, 77, 81, 99, 119, 147, 153, 187, 189, 231, 243, 297, 357, 441, 459, 539, 561, 567, 693, 729, 833, 891, 1071, 1309, 1323, 1377, 1617, 1683, 1701, 2079, 2187, 2499, 2673, 3213, 3927, 3969, 4131, 4851, 5049, 5103, 6237, 7497, 8019, 9163, 9639, 11781, 11907, 12393, 14553, 15147, 15309, 18711, 22491, 24057, 27489, 28917, 35343, 35721, 37179, 43659, 45441, 56133, 67473, 82467, 86751, 106029, 107163, 130977, 136323, 168399, 202419, 247401, 260253, 318087, 392931, 408969, 607257, 742203, 954261, 1178793, 1821771, 2226609, 2862783, 6679827, 20039481]

約数ペア:

[(1, 20039481), (3, 6679827), (7, 2862783), (9, 2226609), (11, 1821771), (17, 1178793), (21, 954261), (27, 742203), (33, 607257), (49, 408969), (51, 392931), (63, 318087), (77, 260253), (81, 247401), (99, 202419), (119, 168399), (147, 136323), (153, 130977), (187, 107163), (189, 106029), (231, 86751), (243, 82467), (297, 67473), (357, 56133), (441, 45441), (459, 43659), (539, 37179), (561, 35721), (567, 35343), (693, 28917), (729, 27489), (833, 24057), (891, 22491), (1071, 18711), (1309, 15309), (1323, 15147), (1377, 14553), (1617, 12393), (1683, 11907), (1701, 11781), (2079, 9639), (2187, 9163), (2499, 8019), (2673, 7497), (3213, 6237), (3927, 5103), (3969, 5049), (4131, 4851)]