20776788

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^2\times {\mathrm{1997}}^1$

素因数の和:2041

約数の個数: 54

約数和(自身を含む): 55818126

約数和(自身を除く): 35041338

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, 1997, 2601, 3468, 3994, 5202, 5991, 7988, 10404, 11982, 17973, 23964, 33949, 35946, 67898, 71892, 101847, 135796, 203694, 305541, 407388, 577133, 611082, 1154266, 1222164, 1731399, 2308532, 3462798, 5194197, 6925596, 10388394, 20776788]

約数ペア:

[(1, 20776788), (2, 10388394), (3, 6925596), (4, 5194197), (6, 3462798), (9, 2308532), (12, 1731399), (17, 1222164), (18, 1154266), (34, 611082), (36, 577133), (51, 407388), (68, 305541), (102, 203694), (153, 135796), (204, 101847), (289, 71892), (306, 67898), (578, 35946), (612, 33949), (867, 23964), (1156, 17973), (1734, 11982), (1997, 10404), (2601, 7988), (3468, 5991), (3994, 5202)]