20966512

素因数分解:

$2^4\times 7^2\times {\mathrm{47}}^1\times {\mathrm{569}}^1$

素因数の和:638

約数の個数: 60

約数和(自身を含む): 48345120

約数和(自身を除く): 27378608

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 49, 56, 94, 98, 112, 188, 196, 329, 376, 392, 569, 658, 752, 784, 1138, 1316, 2276, 2303, 2632, 3983, 4552, 4606, 5264, 7966, 9104, 9212, 15932, 18424, 26743, 27881, 31864, 36848, 53486, 55762, 63728, 106972, 111524, 187201, 213944, 223048, 374402, 427888, 446096, 748804, 1310407, 1497608, 2620814, 2995216, 5241628, 10483256, 20966512]

約数ペア:

[(1, 20966512), (2, 10483256), (4, 5241628), (7, 2995216), (8, 2620814), (14, 1497608), (16, 1310407), (28, 748804), (47, 446096), (49, 427888), (56, 374402), (94, 223048), (98, 213944), (112, 187201), (188, 111524), (196, 106972), (329, 63728), (376, 55762), (392, 53486), (569, 36848), (658, 31864), (752, 27881), (784, 26743), (1138, 18424), (1316, 15932), (2276, 9212), (2303, 9104), (2632, 7966), (3983, 5264), (4552, 4606)]