20938788

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{44741}}^1$

素因数の和:44764

約数の個数: 36

約数和(自身を含む): 57001308

約数和(自身を除く): 36062520

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 44741, 89482, 134223, 178964, 268446, 402669, 536892, 581633, 805338, 1163266, 1610676, 1744899, 2326532, 3489798, 5234697, 6979596, 10469394, 20938788]

約数ペア:

[(1, 20938788), (2, 10469394), (3, 6979596), (4, 5234697), (6, 3489798), (9, 2326532), (12, 1744899), (13, 1610676), (18, 1163266), (26, 805338), (36, 581633), (39, 536892), (52, 402669), (78, 268446), (117, 178964), (156, 134223), (234, 89482), (468, 44741)]