27871857

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:221

約数の個数: 56

約数和(自身を含む): 47925864

約数和(自身を除く): 20054007

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 173, 221, 243, 351, 459, 519, 663, 729, 1053, 1377, 1557, 1989, 2249, 2941, 3159, 4131, 4671, 5967, 6747, 8823, 9477, 12393, 14013, 17901, 20241, 26469, 38233, 42039, 53703, 60723, 79407, 114699, 126117, 161109, 182169, 238221, 344097, 546507, 714663, 1032291, 1639521, 2143989, 3096873, 9290619, 27871857]

約数ペア:

[(1, 27871857), (3, 9290619), (9, 3096873), (13, 2143989), (17, 1639521), (27, 1032291), (39, 714663), (51, 546507), (81, 344097), (117, 238221), (153, 182169), (173, 161109), (221, 126117), (243, 114699), (351, 79407), (459, 60723), (519, 53703), (663, 42039), (729, 38233), (1053, 26469), (1377, 20241), (1557, 17901), (1989, 14013), (2249, 12393), (2941, 9477), (3159, 8823), (4131, 6747), (4671, 5967)]