18355275

素因数分解:

$3^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:473

約数の個数: 48

約数和(自身を含む): 34283520

約数和(自身を除く): 15928245

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 135, 213, 225, 355, 383, 639, 675, 1065, 1149, 1775, 1915, 1917, 3195, 3447, 5325, 5745, 9575, 9585, 10341, 15975, 17235, 27193, 28725, 47925, 51705, 81579, 86175, 135965, 244737, 258525, 407895, 679825, 734211, 1223685, 2039475, 3671055, 6118425, 18355275]

約数ペア:

[(1, 18355275), (3, 6118425), (5, 3671055), (9, 2039475), (15, 1223685), (25, 734211), (27, 679825), (45, 407895), (71, 258525), (75, 244737), (135, 135965), (213, 86175), (225, 81579), (355, 51705), (383, 47925), (639, 28725), (675, 27193), (1065, 17235), (1149, 15975), (1775, 10341), (1915, 9585), (1917, 9575), (3195, 5745), (3447, 5325)]