17420949

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 14028651

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 89, 91, 117, 239, 267, 273, 623, 717, 801, 819, 1157, 1673, 1869, 2151, 3107, 3471, 5019, 5607, 8099, 9321, 10413, 15057, 21271, 21749, 24297, 27963, 63813, 65247, 72891, 148897, 191439, 195741, 276523, 446691, 829569, 1340073, 1935661, 2488707, 5806983, 17420949]

約数ペア:

[(1, 17420949), (3, 5806983), (7, 2488707), (9, 1935661), (13, 1340073), (21, 829569), (39, 446691), (63, 276523), (89, 195741), (91, 191439), (117, 148897), (239, 72891), (267, 65247), (273, 63813), (623, 27963), (717, 24297), (801, 21749), (819, 21271), (1157, 15057), (1673, 10413), (1869, 9321), (2151, 8099), (3107, 5607), (3471, 5019)]