20805948

素因数分解:

$2^2\times 3^2\times {\mathrm{659}}^1\times {\mathrm{877}}^1$

素因数の和:1546

約数の個数: 36

約数和(自身を含む): 52732680

約数和(自身を除く): 31926732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 659, 877, 1318, 1754, 1977, 2631, 2636, 3508, 3954, 5262, 5931, 7893, 7908, 10524, 11862, 15786, 23724, 31572, 577943, 1155886, 1733829, 2311772, 3467658, 5201487, 6935316, 10402974, 20805948]

約数ペア:

[(1, 20805948), (2, 10402974), (3, 6935316), (4, 5201487), (6, 3467658), (9, 2311772), (12, 1733829), (18, 1155886), (36, 577943), (659, 31572), (877, 23724), (1318, 15786), (1754, 11862), (1977, 10524), (2631, 7908), (2636, 7893), (3508, 5931), (3954, 5262)]