21621768

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{719}}^1$

素因数の和:914

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 40586232

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 179, 358, 537, 716, 719, 1074, 1253, 1432, 1438, 2148, 2157, 2506, 2876, 3759, 4296, 4314, 5012, 5033, 5752, 7518, 8628, 10024, 10066, 15036, 15099, 17256, 20132, 30072, 30198, 40264, 60396, 120792, 128701, 257402, 386103, 514804, 772206, 900907, 1029608, 1544412, 1801814, 2702721, 3088824, 3603628, 5405442, 7207256, 10810884, 21621768]

約数ペア:

[(1, 21621768), (2, 10810884), (3, 7207256), (4, 5405442), (6, 3603628), (7, 3088824), (8, 2702721), (12, 1801814), (14, 1544412), (21, 1029608), (24, 900907), (28, 772206), (42, 514804), (56, 386103), (84, 257402), (168, 128701), (179, 120792), (358, 60396), (537, 40264), (716, 30198), (719, 30072), (1074, 20132), (1253, 17256), (1432, 15099), (1438, 15036), (2148, 10066), (2157, 10024), (2506, 8628), (2876, 7518), (3759, 5752), (4296, 5033), (4314, 5012)]