22251555

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 43102800

約数和(自身を除く): 20851245

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 51, 59, 85, 87, 145, 153, 177, 255, 261, 289, 295, 435, 493, 531, 765, 867, 885, 1003, 1305, 1445, 1479, 1711, 2465, 2601, 2655, 3009, 4335, 4437, 5015, 5133, 7395, 8381, 8555, 9027, 13005, 15045, 15399, 17051, 22185, 25143, 25665, 29087, 41905, 45135, 51153, 75429, 76995, 85255, 87261, 125715, 145435, 153459, 255765, 261783, 377145, 436305, 494479, 767295, 1308915, 1483437, 2472395, 4450311, 7417185, 22251555]

約数ペア:

[(1, 22251555), (3, 7417185), (5, 4450311), (9, 2472395), (15, 1483437), (17, 1308915), (29, 767295), (45, 494479), (51, 436305), (59, 377145), (85, 261783), (87, 255765), (145, 153459), (153, 145435), (177, 125715), (255, 87261), (261, 85255), (289, 76995), (295, 75429), (435, 51153), (493, 45135), (531, 41905), (765, 29087), (867, 25665), (885, 25143), (1003, 22185), (1305, 17051), (1445, 15399), (1479, 15045), (1711, 13005), (2465, 9027), (2601, 8555), (2655, 8381), (3009, 7395), (4335, 5133), (4437, 5015)]