19533501

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:171

約数の個数: 64

約数和(自身を含む): 34272000

約数和(自身を除く): 14738499

約数列:

[1, 3, 9, 13, 19, 27, 29, 39, 57, 87, 101, 117, 171, 247, 261, 303, 351, 377, 513, 551, 741, 783, 909, 1131, 1313, 1653, 1919, 2223, 2727, 2929, 3393, 3939, 4959, 5757, 6669, 7163, 8787, 10179, 11817, 14877, 17271, 21489, 24947, 26361, 35451, 38077, 51813, 55651, 64467, 74841, 79083, 114231, 166953, 193401, 224523, 342693, 500859, 673569, 723463, 1028079, 1502577, 2170389, 6511167, 19533501]

約数ペア:

[(1, 19533501), (3, 6511167), (9, 2170389), (13, 1502577), (19, 1028079), (27, 723463), (29, 673569), (39, 500859), (57, 342693), (87, 224523), (101, 193401), (117, 166953), (171, 114231), (247, 79083), (261, 74841), (303, 64467), (351, 55651), (377, 51813), (513, 38077), (551, 35451), (741, 26361), (783, 24947), (909, 21489), (1131, 17271), (1313, 14877), (1653, 11817), (1919, 10179), (2223, 8787), (2727, 7163), (2929, 6669), (3393, 5757), (3939, 4959)]