31780287

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^3\times {\mathrm{379}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 57857280

約数和(自身を除く): 26076993

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 379, 693, 847, 1089, 1137, 1331, 2541, 2653, 3411, 3993, 4169, 7623, 7959, 9317, 11979, 12507, 23877, 27951, 29183, 37521, 45859, 83853, 87549, 137577, 262647, 321013, 412731, 504449, 963039, 1513347, 2889117, 3531143, 4540041, 10593429, 31780287]

約数ペア:

[(1, 31780287), (3, 10593429), (7, 4540041), (9, 3531143), (11, 2889117), (21, 1513347), (33, 963039), (63, 504449), (77, 412731), (99, 321013), (121, 262647), (231, 137577), (363, 87549), (379, 83853), (693, 45859), (847, 37521), (1089, 29183), (1137, 27951), (1331, 23877), (2541, 12507), (2653, 11979), (3411, 9317), (3993, 7959), (4169, 7623)]