21429486

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5387}}^1$

素因数の和:5425

約数の個数: 48

約数和(自身を含む): 52953264

約数和(自身を除く): 31523778

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 5387, 10774, 16161, 32322, 48483, 70031, 91579, 96966, 140062, 183158, 210093, 274737, 420186, 549474, 630279, 824211, 1190527, 1260558, 1648422, 2381054, 3571581, 7143162, 10714743, 21429486]

約数ペア:

[(1, 21429486), (2, 10714743), (3, 7143162), (6, 3571581), (9, 2381054), (13, 1648422), (17, 1260558), (18, 1190527), (26, 824211), (34, 630279), (39, 549474), (51, 420186), (78, 274737), (102, 210093), (117, 183158), (153, 140062), (221, 96966), (234, 91579), (306, 70031), (442, 48483), (663, 32322), (1326, 16161), (1989, 10774), (3978, 5387)]