21281898

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{2539}}^1$

素因数の和:2682

約数の個数: 32

約数和(自身を含む): 46817280

約数和(自身を除く): 25535382

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 127, 254, 381, 762, 1397, 2539, 2794, 4191, 5078, 7617, 8382, 15234, 27929, 55858, 83787, 167574, 322453, 644906, 967359, 1934718, 3546983, 7093966, 10640949, 21281898]

約数ペア:

[(1, 21281898), (2, 10640949), (3, 7093966), (6, 3546983), (11, 1934718), (22, 967359), (33, 644906), (66, 322453), (127, 167574), (254, 83787), (381, 55858), (762, 27929), (1397, 15234), (2539, 8382), (2794, 7617), (4191, 5078)]