20957364

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:341

約数の個数: 72

約数和(自身を含む): 55560960

約数和(自身を除く): 34603596

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 89, 93, 124, 178, 186, 211, 267, 279, 356, 372, 422, 534, 558, 633, 801, 844, 1068, 1116, 1266, 1602, 1899, 2532, 2759, 3204, 3798, 5518, 6541, 7596, 8277, 11036, 13082, 16554, 18779, 19623, 24831, 26164, 33108, 37558, 39246, 49662, 56337, 58869, 75116, 78492, 99324, 112674, 117738, 169011, 225348, 235476, 338022, 582149, 676044, 1164298, 1746447, 2328596, 3492894, 5239341, 6985788, 10478682, 20957364]

約数ペア:

[(1, 20957364), (2, 10478682), (3, 6985788), (4, 5239341), (6, 3492894), (9, 2328596), (12, 1746447), (18, 1164298), (31, 676044), (36, 582149), (62, 338022), (89, 235476), (93, 225348), (124, 169011), (178, 117738), (186, 112674), (211, 99324), (267, 78492), (279, 75116), (356, 58869), (372, 56337), (422, 49662), (534, 39246), (558, 37558), (633, 33108), (801, 26164), (844, 24831), (1068, 19623), (1116, 18779), (1266, 16554), (1602, 13082), (1899, 11036), (2532, 8277), (2759, 7596), (3204, 6541), (3798, 5518)]