21468645

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 80

約数和(自身を含む): 43211520

約数和(自身を除く): 21742875

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 61, 79, 81, 99, 135, 165, 183, 237, 297, 305, 395, 405, 495, 549, 671, 711, 869, 891, 915, 1185, 1485, 1647, 2013, 2133, 2607, 2745, 3355, 3555, 4345, 4455, 4819, 4941, 6039, 6399, 7821, 8235, 10065, 10665, 13035, 14457, 18117, 23463, 24095, 24705, 30195, 31995, 39105, 43371, 53009, 54351, 70389, 72285, 90585, 117315, 130113, 159027, 216855, 265045, 271755, 351945, 390339, 477081, 650565, 795135, 1431243, 1951695, 2385405, 4293729, 7156215, 21468645]

約数ペア:

[(1, 21468645), (3, 7156215), (5, 4293729), (9, 2385405), (11, 1951695), (15, 1431243), (27, 795135), (33, 650565), (45, 477081), (55, 390339), (61, 351945), (79, 271755), (81, 265045), (99, 216855), (135, 159027), (165, 130113), (183, 117315), (237, 90585), (297, 72285), (305, 70389), (395, 54351), (405, 53009), (495, 43371), (549, 39105), (671, 31995), (711, 30195), (869, 24705), (891, 24095), (915, 23463), (1185, 18117), (1485, 14457), (1647, 13035), (2013, 10665), (2133, 10065), (2607, 8235), (2745, 7821), (3355, 6399), (3555, 6039), (4345, 4941), (4455, 4819)]