18646974

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{617}}^1$

素因数の和:721

約数の個数: 48

約数和(自身を含む): 42805152

約数和(自身を除く): 24158178

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 73, 138, 146, 207, 219, 414, 438, 617, 657, 1234, 1314, 1679, 1851, 3358, 3702, 5037, 5553, 10074, 11106, 14191, 15111, 28382, 30222, 42573, 45041, 85146, 90082, 127719, 135123, 255438, 270246, 405369, 810738, 1035943, 2071886, 3107829, 6215658, 9323487, 18646974]

約数ペア:

[(1, 18646974), (2, 9323487), (3, 6215658), (6, 3107829), (9, 2071886), (18, 1035943), (23, 810738), (46, 405369), (69, 270246), (73, 255438), (138, 135123), (146, 127719), (207, 90082), (219, 85146), (414, 45041), (438, 42573), (617, 30222), (657, 28382), (1234, 15111), (1314, 14191), (1679, 11106), (1851, 10074), (3358, 5553), (3702, 5037)]