21603735

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 38937600

約数和(自身を除く): 17333865

約数列:

[1, 3, 5, 9, 15, 45, 59, 79, 103, 177, 237, 295, 309, 395, 515, 531, 711, 885, 927, 1185, 1545, 2655, 3555, 4635, 4661, 6077, 8137, 13983, 18231, 23305, 24411, 30385, 40685, 41949, 54693, 69915, 73233, 91155, 122055, 209745, 273465, 366165, 480083, 1440249, 2400415, 4320747, 7201245, 21603735]

約数ペア:

[(1, 21603735), (3, 7201245), (5, 4320747), (9, 2400415), (15, 1440249), (45, 480083), (59, 366165), (79, 273465), (103, 209745), (177, 122055), (237, 91155), (295, 73233), (309, 69915), (395, 54693), (515, 41949), (531, 40685), (711, 30385), (885, 24411), (927, 23305), (1185, 18231), (1545, 13983), (2655, 8137), (3555, 6077), (4635, 4661)]