19948665

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 36388800

約数和(自身を除く): 16440135

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 87, 121, 145, 165, 319, 363, 379, 435, 605, 957, 1137, 1595, 1815, 1895, 3509, 4169, 4785, 5685, 10527, 10991, 12507, 17545, 20845, 32973, 45859, 52635, 54955, 62535, 120901, 137577, 164865, 229295, 362703, 604505, 687885, 1329911, 1813515, 3989733, 6649555, 19948665]

約数ペア:

[(1, 19948665), (3, 6649555), (5, 3989733), (11, 1813515), (15, 1329911), (29, 687885), (33, 604505), (55, 362703), (87, 229295), (121, 164865), (145, 137577), (165, 120901), (319, 62535), (363, 54955), (379, 52635), (435, 45859), (605, 32973), (957, 20845), (1137, 17545), (1595, 12507), (1815, 10991), (1895, 10527), (3509, 5685), (4169, 4785)]