18858015

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 39626496

約数和(自身を除く): 20768481

約数列:

[1, 3, 5, 9, 11, 15, 17, 27, 33, 45, 51, 55, 81, 83, 85, 99, 135, 153, 165, 187, 243, 249, 255, 297, 405, 415, 459, 495, 561, 747, 765, 891, 913, 935, 1215, 1245, 1377, 1411, 1485, 1683, 2241, 2295, 2673, 2739, 2805, 3735, 4131, 4233, 4455, 4565, 5049, 6723, 6885, 7055, 8217, 8415, 11205, 12699, 13365, 13695, 15147, 15521, 20169, 20655, 21165, 24651, 25245, 33615, 38097, 41085, 45441, 46563, 63495, 73953, 75735, 77605, 100845, 114291, 123255, 139689, 190485, 221859, 227205, 232815, 342873, 369765, 419067, 571455, 698445, 1109295, 1257201, 1714365, 2095335, 3771603, 6286005, 18858015]

約数ペア:

[(1, 18858015), (3, 6286005), (5, 3771603), (9, 2095335), (11, 1714365), (15, 1257201), (17, 1109295), (27, 698445), (33, 571455), (45, 419067), (51, 369765), (55, 342873), (81, 232815), (83, 227205), (85, 221859), (99, 190485), (135, 139689), (153, 123255), (165, 114291), (187, 100845), (243, 77605), (249, 75735), (255, 73953), (297, 63495), (405, 46563), (415, 45441), (459, 41085), (495, 38097), (561, 33615), (747, 25245), (765, 24651), (891, 21165), (913, 20655), (935, 20169), (1215, 15521), (1245, 15147), (1377, 13695), (1411, 13365), (1485, 12699), (1683, 11205), (2241, 8415), (2295, 8217), (2673, 7055), (2739, 6885), (2805, 6723), (3735, 5049), (4131, 4565), (4233, 4455)]