20787516

素因数分解:

$2^2\times 3^4\times {\mathrm{83}}^1\times {\mathrm{773}}^1$

素因数の和:872

約数の個数: 60

約数和(自身を含む): 55068552

約数和(自身を除く): 34281036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 83, 108, 162, 166, 249, 324, 332, 498, 747, 773, 996, 1494, 1546, 2241, 2319, 2988, 3092, 4482, 4638, 6723, 6957, 8964, 9276, 13446, 13914, 20871, 26892, 27828, 41742, 62613, 64159, 83484, 125226, 128318, 192477, 250452, 256636, 384954, 577431, 769908, 1154862, 1732293, 2309724, 3464586, 5196879, 6929172, 10393758, 20787516]

約数ペア:

[(1, 20787516), (2, 10393758), (3, 6929172), (4, 5196879), (6, 3464586), (9, 2309724), (12, 1732293), (18, 1154862), (27, 769908), (36, 577431), (54, 384954), (81, 256636), (83, 250452), (108, 192477), (162, 128318), (166, 125226), (249, 83484), (324, 64159), (332, 62613), (498, 41742), (747, 27828), (773, 26892), (996, 20871), (1494, 13914), (1546, 13446), (2241, 9276), (2319, 8964), (2988, 6957), (3092, 6723), (4482, 4638)]