21974625

素因数分解:

$3^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{383}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 21156255

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 125, 135, 153, 225, 255, 375, 383, 425, 459, 675, 765, 1125, 1149, 1275, 1915, 2125, 2295, 3375, 3447, 3825, 5745, 6375, 6511, 9575, 10341, 11475, 17235, 19125, 19533, 28725, 32555, 47875, 51705, 57375, 58599, 86175, 97665, 143625, 162775, 175797, 258525, 292995, 430875, 488325, 813875, 878985, 1292625, 1464975, 2441625, 4394925, 7324875, 21974625]

約数ペア:

[(1, 21974625), (3, 7324875), (5, 4394925), (9, 2441625), (15, 1464975), (17, 1292625), (25, 878985), (27, 813875), (45, 488325), (51, 430875), (75, 292995), (85, 258525), (125, 175797), (135, 162775), (153, 143625), (225, 97665), (255, 86175), (375, 58599), (383, 57375), (425, 51705), (459, 47875), (675, 32555), (765, 28725), (1125, 19533), (1149, 19125), (1275, 17235), (1915, 11475), (2125, 10341), (2295, 9575), (3375, 6511), (3447, 6375), (3825, 5745)]