19905156

素因数分解:

$2^2\times 3^3\times {\mathrm{79}}^1\times {\mathrm{2333}}^1$

素因数の和:2425

約数の個数: 48

約数和(自身を含む): 52281600

約数和(自身を除く): 32376444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 79, 108, 158, 237, 316, 474, 711, 948, 1422, 2133, 2333, 2844, 4266, 4666, 6999, 8532, 9332, 13998, 20997, 27996, 41994, 62991, 83988, 125982, 184307, 251964, 368614, 552921, 737228, 1105842, 1658763, 2211684, 3317526, 4976289, 6635052, 9952578, 19905156]

約数ペア:

[(1, 19905156), (2, 9952578), (3, 6635052), (4, 4976289), (6, 3317526), (9, 2211684), (12, 1658763), (18, 1105842), (27, 737228), (36, 552921), (54, 368614), (79, 251964), (108, 184307), (158, 125982), (237, 83988), (316, 62991), (474, 41994), (711, 27996), (948, 20997), (1422, 13998), (2133, 9332), (2333, 8532), (2844, 6999), (4266, 4666)]