20924475

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1951}}^1$

素因数の和:1988

約数の個数: 48

約数和(自身を含む): 40664064

約数和(自身を除く): 19739589

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 55, 65, 75, 143, 165, 195, 275, 325, 429, 715, 825, 975, 1951, 2145, 3575, 5853, 9755, 10725, 21461, 25363, 29265, 48775, 64383, 76089, 107305, 126815, 146325, 278993, 321915, 380445, 536525, 634075, 836979, 1394965, 1609575, 1902225, 4184895, 6974825, 20924475]

約数ペア:

[(1, 20924475), (3, 6974825), (5, 4184895), (11, 1902225), (13, 1609575), (15, 1394965), (25, 836979), (33, 634075), (39, 536525), (55, 380445), (65, 321915), (75, 278993), (143, 146325), (165, 126815), (195, 107305), (275, 76089), (325, 64383), (429, 48775), (715, 29265), (825, 25363), (975, 21461), (1951, 10725), (2145, 9755), (3575, 5853)]