19384155

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 40014000

約数和(自身を除く): 20629845

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 59, 63, 105, 147, 149, 177, 245, 295, 315, 413, 441, 447, 531, 735, 745, 885, 1043, 1239, 1341, 2065, 2205, 2235, 2655, 2891, 3129, 3717, 5215, 6195, 6705, 7301, 8673, 8791, 9387, 14455, 15645, 18585, 21903, 26019, 26373, 36505, 43365, 43955, 46935, 61537, 65709, 79119, 109515, 130095, 131865, 184611, 307685, 328545, 395595, 430759, 553833, 923055, 1292277, 2153795, 2769165, 3876831, 6461385, 19384155]

約数ペア:

[(1, 19384155), (3, 6461385), (5, 3876831), (7, 2769165), (9, 2153795), (15, 1292277), (21, 923055), (35, 553833), (45, 430759), (49, 395595), (59, 328545), (63, 307685), (105, 184611), (147, 131865), (149, 130095), (177, 109515), (245, 79119), (295, 65709), (315, 61537), (413, 46935), (441, 43955), (447, 43365), (531, 36505), (735, 26373), (745, 26019), (885, 21903), (1043, 18585), (1239, 15645), (1341, 14455), (2065, 9387), (2205, 8791), (2235, 8673), (2655, 7301), (2891, 6705), (3129, 6195), (3717, 5215)]