20954835

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 41333760

約数和(自身を除く): 20378925

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 103, 135, 137, 165, 297, 309, 411, 495, 515, 685, 927, 1133, 1233, 1485, 1507, 1545, 2055, 2781, 3399, 3699, 4521, 4635, 5665, 6165, 7535, 10197, 13563, 13905, 14111, 16995, 18495, 22605, 30591, 40689, 42333, 50985, 67815, 70555, 126999, 152955, 155221, 203445, 211665, 380997, 465663, 634995, 776105, 1396989, 1904985, 2328315, 4190967, 6984945, 20954835]

約数ペア:

[(1, 20954835), (3, 6984945), (5, 4190967), (9, 2328315), (11, 1904985), (15, 1396989), (27, 776105), (33, 634995), (45, 465663), (55, 380997), (99, 211665), (103, 203445), (135, 155221), (137, 152955), (165, 126999), (297, 70555), (309, 67815), (411, 50985), (495, 42333), (515, 40689), (685, 30591), (927, 22605), (1133, 18495), (1233, 16995), (1485, 14111), (1507, 13905), (1545, 13563), (2055, 10197), (2781, 7535), (3399, 6165), (3699, 5665), (4521, 4635)]