20177487

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 35493120

約数和(自身を除く): 15315633

約数列:

[1, 3, 9, 11, 17, 19, 33, 51, 57, 99, 153, 171, 187, 209, 323, 561, 627, 631, 969, 1683, 1881, 1893, 2907, 3553, 5679, 6941, 10659, 10727, 11989, 20823, 31977, 32181, 35967, 62469, 96543, 107901, 117997, 131879, 203813, 353991, 395637, 611439, 1061973, 1186911, 1834317, 2241943, 6725829, 20177487]

約数ペア:

[(1, 20177487), (3, 6725829), (9, 2241943), (11, 1834317), (17, 1186911), (19, 1061973), (33, 611439), (51, 395637), (57, 353991), (99, 203813), (153, 131879), (171, 117997), (187, 107901), (209, 96543), (323, 62469), (561, 35967), (627, 32181), (631, 31977), (969, 20823), (1683, 11989), (1881, 10727), (1893, 10659), (2907, 6941), (3553, 5679)]