20576985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 39626496

約数和(自身を除く): 19049511

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 53, 55, 65, 143, 159, 165, 181, 195, 265, 429, 543, 583, 689, 715, 795, 905, 1749, 1991, 2067, 2145, 2353, 2715, 2915, 3445, 5973, 7059, 7579, 8745, 9593, 9955, 10335, 11765, 22737, 25883, 28779, 29865, 35295, 37895, 47965, 77649, 105523, 113685, 124709, 129415, 143895, 316569, 374127, 388245, 527615, 623545, 1371799, 1582845, 1870635, 4115397, 6858995, 20576985]

約数ペア:

[(1, 20576985), (3, 6858995), (5, 4115397), (11, 1870635), (13, 1582845), (15, 1371799), (33, 623545), (39, 527615), (53, 388245), (55, 374127), (65, 316569), (143, 143895), (159, 129415), (165, 124709), (181, 113685), (195, 105523), (265, 77649), (429, 47965), (543, 37895), (583, 35295), (689, 29865), (715, 28779), (795, 25883), (905, 22737), (1749, 11765), (1991, 10335), (2067, 9955), (2145, 9593), (2353, 8745), (2715, 7579), (2915, 7059), (3445, 5973)]