421513725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{19447}}^1$

素因数の和:19494

約数の個数: 36

約数和(自身を含む): 740346464

約数和(自身を除く): 318832739

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 289, 425, 867, 1275, 1445, 4335, 7225, 19447, 21675, 58341, 97235, 291705, 330599, 486175, 991797, 1458525, 1652995, 4958985, 5620183, 8264975, 16860549, 24794925, 28100915, 84302745, 140504575, 421513725]

約数ペア:

[(1, 421513725), (3, 140504575), (5, 84302745), (15, 28100915), (17, 24794925), (25, 16860549), (51, 8264975), (75, 5620183), (85, 4958985), (255, 1652995), (289, 1458525), (425, 991797), (867, 486175), (1275, 330599), (1445, 291705), (4335, 97235), (7225, 58341), (19447, 21675)]