20906838

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{4019}}^1$

素因数の和:4061

約数の個数: 36

約数和(自身を含む): 48131460

約数和(自身を除く): 27224622

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 289, 306, 578, 867, 1734, 2601, 4019, 5202, 8038, 12057, 24114, 36171, 68323, 72342, 136646, 204969, 409938, 614907, 1161491, 1229814, 2322982, 3484473, 6968946, 10453419, 20906838]

約数ペア:

[(1, 20906838), (2, 10453419), (3, 6968946), (6, 3484473), (9, 2322982), (17, 1229814), (18, 1161491), (34, 614907), (51, 409938), (102, 204969), (153, 136646), (289, 72342), (306, 68323), (578, 36171), (867, 24114), (1734, 12057), (2601, 8038), (4019, 5202)]