19993479

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 31124736

約数和(自身を除く): 11131257

約数列:

[1, 3, 11, 17, 33, 51, 157, 187, 227, 471, 561, 681, 1727, 2497, 2669, 3859, 5181, 7491, 8007, 11577, 29359, 35639, 42449, 88077, 106917, 127347, 392029, 605863, 1176087, 1817589, 6664493, 19993479]

約数ペア:

[(1, 19993479), (3, 6664493), (11, 1817589), (17, 1176087), (33, 605863), (51, 392029), (157, 127347), (187, 106917), (227, 88077), (471, 42449), (561, 35639), (681, 29359), (1727, 11577), (2497, 8007), (2669, 7491), (3859, 5181)]