21245322

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{569}}^1$

素因数の和:715

約数の個数: 48

約数和(自身を含む): 49904640

約数和(自身を除く): 28659318

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 127, 147, 254, 294, 381, 569, 762, 889, 1138, 1707, 1778, 2667, 3414, 3983, 5334, 6223, 7966, 11949, 12446, 18669, 23898, 27881, 37338, 55762, 72263, 83643, 144526, 167286, 216789, 433578, 505841, 1011682, 1517523, 3035046, 3540887, 7081774, 10622661, 21245322]

約数ペア:

[(1, 21245322), (2, 10622661), (3, 7081774), (6, 3540887), (7, 3035046), (14, 1517523), (21, 1011682), (42, 505841), (49, 433578), (98, 216789), (127, 167286), (147, 144526), (254, 83643), (294, 72263), (381, 55762), (569, 37338), (762, 27881), (889, 23898), (1138, 18669), (1707, 12446), (1778, 11949), (2667, 7966), (3414, 6223), (3983, 5334)]