20957958

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3539}}^1$

素因数の和:3601

約数の個数: 48

約数和(自身を含む): 53015040

約数和(自身を除く): 32057082

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 47, 63, 94, 126, 141, 282, 329, 423, 658, 846, 987, 1974, 2961, 3539, 5922, 7078, 10617, 21234, 24773, 31851, 49546, 63702, 74319, 148638, 166333, 222957, 332666, 445914, 498999, 997998, 1164331, 1496997, 2328662, 2993994, 3492993, 6985986, 10478979, 20957958]

約数ペア:

[(1, 20957958), (2, 10478979), (3, 6985986), (6, 3492993), (7, 2993994), (9, 2328662), (14, 1496997), (18, 1164331), (21, 997998), (42, 498999), (47, 445914), (63, 332666), (94, 222957), (126, 166333), (141, 148638), (282, 74319), (329, 63702), (423, 49546), (658, 31851), (846, 24773), (987, 21234), (1974, 10617), (2961, 7078), (3539, 5922)]