18121575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 32381856

約数和(自身を除く): 14260281

約数列:

[1, 3, 5, 15, 17, 25, 51, 61, 75, 85, 183, 233, 255, 305, 425, 699, 915, 1037, 1165, 1275, 1525, 3111, 3495, 3961, 4575, 5185, 5825, 11883, 14213, 15555, 17475, 19805, 25925, 42639, 59415, 71065, 77775, 99025, 213195, 241621, 297075, 355325, 724863, 1065975, 1208105, 3624315, 6040525, 18121575]

約数ペア:

[(1, 18121575), (3, 6040525), (5, 3624315), (15, 1208105), (17, 1065975), (25, 724863), (51, 355325), (61, 297075), (75, 241621), (85, 213195), (183, 99025), (233, 77775), (255, 71065), (305, 59415), (425, 42639), (699, 25925), (915, 19805), (1037, 17475), (1165, 15555), (1275, 14213), (1525, 11883), (3111, 5825), (3495, 5185), (3961, 4575)]