20219409

素因数分解:

$3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 96

約数和(自身を含む): 39398400

約数和(自身を除く): 19178991

約数列:

[1, 3, 7, 9, 17, 21, 27, 29, 31, 49, 51, 63, 87, 93, 119, 147, 153, 189, 203, 217, 261, 279, 357, 441, 459, 493, 527, 609, 651, 783, 833, 837, 899, 1071, 1323, 1421, 1479, 1519, 1581, 1827, 1953, 2499, 2697, 3213, 3451, 3689, 4263, 4437, 4557, 4743, 5481, 5859, 6293, 7497, 8091, 10353, 11067, 12789, 13311, 13671, 14229, 15283, 18879, 22491, 24157, 24273, 25823, 31059, 33201, 38367, 41013, 44051, 45849, 56637, 72471, 77469, 93177, 99603, 106981, 132153, 137547, 169911, 217413, 232407, 320943, 396459, 412641, 652239, 697221, 748867, 962829, 1189377, 2246601, 2888487, 6739803, 20219409]

約数ペア:

[(1, 20219409), (3, 6739803), (7, 2888487), (9, 2246601), (17, 1189377), (21, 962829), (27, 748867), (29, 697221), (31, 652239), (49, 412641), (51, 396459), (63, 320943), (87, 232407), (93, 217413), (119, 169911), (147, 137547), (153, 132153), (189, 106981), (203, 99603), (217, 93177), (261, 77469), (279, 72471), (357, 56637), (441, 45849), (459, 44051), (493, 41013), (527, 38367), (609, 33201), (651, 31059), (783, 25823), (833, 24273), (837, 24157), (899, 22491), (1071, 18879), (1323, 15283), (1421, 14229), (1479, 13671), (1519, 13311), (1581, 12789), (1827, 11067), (1953, 10353), (2499, 8091), (2697, 7497), (3213, 6293), (3451, 5859), (3689, 5481), (4263, 4743), (4437, 4557)]