28541799

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 49305984

約数和(自身を除く): 20764185

約数列:

[1, 3, 9, 11, 13, 33, 39, 67, 99, 117, 143, 201, 331, 429, 603, 737, 871, 993, 1287, 2211, 2613, 2979, 3641, 4303, 6633, 7839, 9581, 10923, 12909, 22177, 28743, 32769, 38727, 47333, 66531, 86229, 141999, 199593, 243947, 288301, 425997, 731841, 864903, 2195523, 2594709, 3171311, 9513933, 28541799]

約数ペア:

[(1, 28541799), (3, 9513933), (9, 3171311), (11, 2594709), (13, 2195523), (33, 864903), (39, 731841), (67, 425997), (99, 288301), (117, 243947), (143, 199593), (201, 141999), (331, 86229), (429, 66531), (603, 47333), (737, 38727), (871, 32769), (993, 28743), (1287, 22177), (2211, 12909), (2613, 10923), (2979, 9581), (3641, 7839), (4303, 6633)]