20963410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{73}}^1$

素因数の和:187

約数の個数: 48

約数和(自身を含む): 42088536

約数和(自身を除く): 21125126

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 73, 94, 130, 146, 235, 365, 470, 611, 730, 949, 1222, 1898, 2209, 3055, 3431, 4418, 4745, 6110, 6862, 9490, 11045, 17155, 22090, 28717, 34310, 44603, 57434, 89206, 143585, 161257, 223015, 287170, 322514, 446030, 806285, 1612570, 2096341, 4192682, 10481705, 20963410]

約数ペア:

[(1, 20963410), (2, 10481705), (5, 4192682), (10, 2096341), (13, 1612570), (26, 806285), (47, 446030), (65, 322514), (73, 287170), (94, 223015), (130, 161257), (146, 143585), (235, 89206), (365, 57434), (470, 44603), (611, 34310), (730, 28717), (949, 22090), (1222, 17155), (1898, 11045), (2209, 9490), (3055, 6862), (3431, 6110), (4418, 4745)]