18403605

素因数分解:

$3^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1$

素因数の和:60

約数の個数: 80

約数和(自身を含む): 38263104

約数和(自身を除く): 19859499

約数列:

[1, 3, 5, 9, 11, 15, 17, 27, 33, 45, 51, 55, 81, 85, 99, 135, 153, 165, 187, 243, 255, 297, 405, 459, 495, 561, 729, 765, 891, 935, 1215, 1377, 1485, 1683, 2187, 2295, 2673, 2805, 3645, 4131, 4455, 5049, 6561, 6885, 8019, 8415, 10935, 12393, 13365, 15147, 19683, 20655, 24057, 25245, 32805, 37179, 40095, 45441, 61965, 72171, 75735, 98415, 111537, 120285, 136323, 185895, 216513, 227205, 334611, 360855, 408969, 557685, 681615, 1082565, 1226907, 1673055, 2044845, 3680721, 6134535, 18403605]

約数ペア:

[(1, 18403605), (3, 6134535), (5, 3680721), (9, 2044845), (11, 1673055), (15, 1226907), (17, 1082565), (27, 681615), (33, 557685), (45, 408969), (51, 360855), (55, 334611), (81, 227205), (85, 216513), (99, 185895), (135, 136323), (153, 120285), (165, 111537), (187, 98415), (243, 75735), (255, 72171), (297, 61965), (405, 45441), (459, 40095), (495, 37179), (561, 32805), (729, 25245), (765, 24057), (891, 20655), (935, 19683), (1215, 15147), (1377, 13365), (1485, 12393), (1683, 10935), (2187, 8415), (2295, 8019), (2673, 6885), (2805, 6561), (3645, 5049), (4131, 4455)]