21632373

素因数分解:

$3^3\times 7^2\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 16288587

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 83, 147, 189, 197, 249, 441, 581, 591, 747, 1323, 1379, 1743, 1773, 2241, 4067, 4137, 5229, 5319, 9653, 12201, 12411, 15687, 16351, 28959, 36603, 37233, 49053, 86877, 109809, 114457, 147159, 260631, 343371, 441477, 801199, 1030113, 2403597, 3090339, 7210791, 21632373]

約数ペア:

[(1, 21632373), (3, 7210791), (7, 3090339), (9, 2403597), (21, 1030113), (27, 801199), (49, 441477), (63, 343371), (83, 260631), (147, 147159), (189, 114457), (197, 109809), (249, 86877), (441, 49053), (581, 37233), (591, 36603), (747, 28959), (1323, 16351), (1379, 15687), (1743, 12411), (1773, 12201), (2241, 9653), (4067, 5319), (4137, 5229)]