21378006

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{10151}}^1$

素因数の和:10178

約数の個数: 40

約数和(自身を含む): 51592464

約数和(自身を除く): 30214458

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053, 2106, 10151, 20302, 30453, 60906, 91359, 131963, 182718, 263926, 274077, 395889, 548154, 791778, 822231, 1187667, 1644462, 2375334, 3563001, 7126002, 10689003, 21378006]

約数ペア:

[(1, 21378006), (2, 10689003), (3, 7126002), (6, 3563001), (9, 2375334), (13, 1644462), (18, 1187667), (26, 822231), (27, 791778), (39, 548154), (54, 395889), (78, 274077), (81, 263926), (117, 182718), (162, 131963), (234, 91359), (351, 60906), (702, 30453), (1053, 20302), (2106, 10151)]