19459251

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{691}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 33216000

約数和(自身を除く): 13756749

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 691, 1043, 1341, 2073, 3129, 4023, 4837, 6219, 9387, 14511, 18657, 28161, 43533, 102959, 130599, 308877, 720713, 926631, 2162139, 2779893, 6486417, 19459251]

約数ペア:

[(1, 19459251), (3, 6486417), (7, 2779893), (9, 2162139), (21, 926631), (27, 720713), (63, 308877), (149, 130599), (189, 102959), (447, 43533), (691, 28161), (1043, 18657), (1341, 14511), (2073, 9387), (3129, 6219), (4023, 4837)]