20185902

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1999}}^1$

素因数の和:2038

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 31654098

約数列:

[1, 2, 3, 6, 9, 11, 17, 18, 22, 27, 33, 34, 51, 54, 66, 99, 102, 153, 187, 198, 297, 306, 374, 459, 561, 594, 918, 1122, 1683, 1999, 3366, 3998, 5049, 5997, 10098, 11994, 17991, 21989, 33983, 35982, 43978, 53973, 65967, 67966, 101949, 107946, 131934, 197901, 203898, 305847, 373813, 395802, 593703, 611694, 747626, 917541, 1121439, 1187406, 1835082, 2242878, 3364317, 6728634, 10092951, 20185902]

約数ペア:

[(1, 20185902), (2, 10092951), (3, 6728634), (6, 3364317), (9, 2242878), (11, 1835082), (17, 1187406), (18, 1121439), (22, 917541), (27, 747626), (33, 611694), (34, 593703), (51, 395802), (54, 373813), (66, 305847), (99, 203898), (102, 197901), (153, 131934), (187, 107946), (198, 101949), (297, 67966), (306, 65967), (374, 53973), (459, 43978), (561, 35982), (594, 33983), (918, 21989), (1122, 17991), (1683, 11994), (1999, 10098), (3366, 5997), (3998, 5049)]