28570509

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 49996800

約数和(自身を除く): 21426291

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 61, 83, 99, 171, 183, 209, 249, 297, 513, 549, 627, 671, 747, 913, 1159, 1577, 1647, 1881, 2013, 2241, 2739, 3477, 4731, 5063, 5643, 6039, 8217, 10431, 12749, 14193, 15189, 17347, 18117, 24651, 31293, 38247, 42579, 45567, 52041, 55693, 96197, 114741, 136701, 156123, 167079, 288591, 344223, 468369, 501237, 865773, 1058167, 1503711, 2597319, 3174501, 9523503, 28570509]

約数ペア:

[(1, 28570509), (3, 9523503), (9, 3174501), (11, 2597319), (19, 1503711), (27, 1058167), (33, 865773), (57, 501237), (61, 468369), (83, 344223), (99, 288591), (171, 167079), (183, 156123), (209, 136701), (249, 114741), (297, 96197), (513, 55693), (549, 52041), (627, 45567), (671, 42579), (747, 38247), (913, 31293), (1159, 24651), (1577, 18117), (1647, 17347), (1881, 15189), (2013, 14193), (2241, 12749), (2739, 10431), (3477, 8217), (4731, 6039), (5063, 5643)]