21336003

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{631}}^1$

素因数の和:684

約数の個数: 36

約数和(自身を含む): 35312368

約数和(自身を除く): 13976365

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 289, 631, 663, 867, 1893, 1989, 2601, 3757, 5679, 8203, 10727, 11271, 24609, 32181, 33813, 73827, 96543, 139451, 182359, 418353, 547077, 1255059, 1641231, 2370667, 7112001, 21336003]

約数ペア:

[(1, 21336003), (3, 7112001), (9, 2370667), (13, 1641231), (17, 1255059), (39, 547077), (51, 418353), (117, 182359), (153, 139451), (221, 96543), (289, 73827), (631, 33813), (663, 32181), (867, 24609), (1893, 11271), (1989, 10727), (2601, 8203), (3757, 5679)]