19702683

素因数分解:

$3^9\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:58

約数の個数: 80

約数和(自身を含む): 39680256

約数和(自身を除く): 19977573

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 63, 77, 81, 91, 99, 117, 143, 189, 231, 243, 273, 297, 351, 429, 567, 693, 729, 819, 891, 1001, 1053, 1287, 1701, 2079, 2187, 2457, 2673, 3003, 3159, 3861, 5103, 6237, 6561, 7371, 8019, 9009, 9477, 11583, 15309, 18711, 19683, 22113, 24057, 27027, 28431, 34749, 45927, 56133, 66339, 72171, 81081, 85293, 104247, 137781, 168399, 199017, 216513, 243243, 255879, 312741, 505197, 597051, 729729, 938223, 1515591, 1791153, 2189187, 2814669, 6567561, 19702683]

約数ペア:

[(1, 19702683), (3, 6567561), (7, 2814669), (9, 2189187), (11, 1791153), (13, 1515591), (21, 938223), (27, 729729), (33, 597051), (39, 505197), (63, 312741), (77, 255879), (81, 243243), (91, 216513), (99, 199017), (117, 168399), (143, 137781), (189, 104247), (231, 85293), (243, 81081), (273, 72171), (297, 66339), (351, 56133), (429, 45927), (567, 34749), (693, 28431), (729, 27027), (819, 24057), (891, 22113), (1001, 19683), (1053, 18711), (1287, 15309), (1701, 11583), (2079, 9477), (2187, 9009), (2457, 8019), (2673, 7371), (3003, 6561), (3159, 6237), (3861, 5103)]