19995876

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^1\times {\mathrm{10891}}^1$

素因数の和:10921

約数の個数: 48

約数和(自身を含む): 54895680

約数和(自身を除く): 34899804

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 102, 108, 153, 204, 306, 459, 612, 918, 1836, 10891, 21782, 32673, 43564, 65346, 98019, 130692, 185147, 196038, 294057, 370294, 392076, 555441, 588114, 740588, 1110882, 1176228, 1666323, 2221764, 3332646, 4998969, 6665292, 9997938, 19995876]

約数ペア:

[(1, 19995876), (2, 9997938), (3, 6665292), (4, 4998969), (6, 3332646), (9, 2221764), (12, 1666323), (17, 1176228), (18, 1110882), (27, 740588), (34, 588114), (36, 555441), (51, 392076), (54, 370294), (68, 294057), (102, 196038), (108, 185147), (153, 130692), (204, 98019), (306, 65346), (459, 43564), (612, 32673), (918, 21782), (1836, 10891)]