20165074419

素因数分解:

$3^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{421}}^1\times {\mathrm{1999}}^1$

素因数の和:2600

約数の個数: 48

約数和(自身を含む): 31558848000

約数和(自身を除く): 11393773581

約数列:

[1, 3, 7, 21, 49, 147, 163, 421, 489, 1141, 1263, 1999, 2947, 3423, 5997, 7987, 8841, 13993, 20629, 23961, 41979, 61887, 68623, 97951, 205869, 293853, 325837, 480361, 841579, 977511, 1441083, 2280859, 2524737, 3362527, 5891053, 6842577, 10087581, 15966013, 17673159, 41237371, 47898039, 123712113, 137177377, 411532131, 960241639, 2880724917, 6721691473, 20165074419]

約数ペア:

[(1, 20165074419), (3, 6721691473), (7, 2880724917), (21, 960241639), (49, 411532131), (147, 137177377), (163, 123712113), (421, 47898039), (489, 41237371), (1141, 17673159), (1263, 15966013), (1999, 10087581), (2947, 6842577), (3423, 5891053), (5997, 3362527), (7987, 2524737), (8841, 2280859), (13993, 1441083), (20629, 977511), (23961, 841579), (41979, 480361), (61887, 325837), (68623, 293853), (97951, 205869)]