20721756

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{877}}^1$

素因数の和:1074

約数の個数: 48

約数和(自身を含む): 53101440

約数和(自身を除く): 32379684

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 179, 358, 537, 716, 877, 1074, 1754, 1969, 2148, 2631, 3508, 3938, 5262, 5907, 7876, 9647, 10524, 11814, 19294, 23628, 28941, 38588, 57882, 115764, 156983, 313966, 470949, 627932, 941898, 1726813, 1883796, 3453626, 5180439, 6907252, 10360878, 20721756]

約数ペア:

[(1, 20721756), (2, 10360878), (3, 6907252), (4, 5180439), (6, 3453626), (11, 1883796), (12, 1726813), (22, 941898), (33, 627932), (44, 470949), (66, 313966), (132, 156983), (179, 115764), (358, 57882), (537, 38588), (716, 28941), (877, 23628), (1074, 19294), (1754, 11814), (1969, 10524), (2148, 9647), (2631, 7876), (3508, 5907), (3938, 5262)]