20967165

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{179}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 38750400

約数和(自身を除く): 17783235

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 137, 171, 179, 285, 411, 537, 685, 855, 895, 1233, 1611, 2055, 2603, 2685, 3401, 6165, 7809, 8055, 10203, 13015, 17005, 23427, 24523, 30609, 39045, 51015, 73569, 117135, 122615, 153045, 220707, 367845, 465937, 1103535, 1397811, 2329685, 4193433, 6989055, 20967165]

約数ペア:

[(1, 20967165), (3, 6989055), (5, 4193433), (9, 2329685), (15, 1397811), (19, 1103535), (45, 465937), (57, 367845), (95, 220707), (137, 153045), (171, 122615), (179, 117135), (285, 73569), (411, 51015), (537, 39045), (685, 30609), (855, 24523), (895, 23427), (1233, 17005), (1611, 13015), (2055, 10203), (2603, 8055), (2685, 7809), (3401, 6165)]