20984868

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^2\times {\mathrm{2017}}^1$

素因数の和:2061

約数の個数: 54

約数和(自身を含む): 56376866

約数和(自身を除く): 35391998

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 289, 306, 578, 612, 867, 1156, 1734, 2017, 2601, 3468, 4034, 5202, 6051, 8068, 10404, 12102, 18153, 24204, 34289, 36306, 68578, 72612, 102867, 137156, 205734, 308601, 411468, 582913, 617202, 1165826, 1234404, 1748739, 2331652, 3497478, 5246217, 6994956, 10492434, 20984868]

約数ペア:

[(1, 20984868), (2, 10492434), (3, 6994956), (4, 5246217), (6, 3497478), (9, 2331652), (12, 1748739), (17, 1234404), (18, 1165826), (34, 617202), (36, 582913), (51, 411468), (68, 308601), (102, 205734), (153, 137156), (204, 102867), (289, 72612), (306, 68578), (578, 36306), (612, 34289), (867, 24204), (1156, 18153), (1734, 12102), (2017, 10404), (2601, 8068), (3468, 6051), (4034, 5202)]