20187772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 41313888

約数和(自身を除く): 21126116

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 137, 187, 197, 274, 374, 394, 548, 748, 788, 1507, 2167, 2329, 3014, 3349, 4334, 4658, 6028, 6698, 8668, 9316, 13396, 25619, 26989, 36839, 51238, 53978, 73678, 102476, 107956, 147356, 296879, 458813, 593758, 917626, 1187516, 1835252, 5046943, 10093886, 20187772]

約数ペア:

[(1, 20187772), (2, 10093886), (4, 5046943), (11, 1835252), (17, 1187516), (22, 917626), (34, 593758), (44, 458813), (68, 296879), (137, 147356), (187, 107956), (197, 102476), (274, 73678), (374, 53978), (394, 51238), (548, 36839), (748, 26989), (788, 25619), (1507, 13396), (2167, 9316), (2329, 8668), (3014, 6698), (3349, 6028), (4334, 4658)]