20977904

素因数分解:

$2^4\times {\mathrm{29}}^2\times {\mathrm{1559}}^1$

素因数の和:1625

約数の個数: 30

約数和(自身を含む): 42121560

約数和(自身を除く): 21143656

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 841, 1559, 1682, 3118, 3364, 6236, 6728, 12472, 13456, 24944, 45211, 90422, 180844, 361688, 723376, 1311119, 2622238, 5244476, 10488952, 20977904]

約数ペア:

[(1, 20977904), (2, 10488952), (4, 5244476), (8, 2622238), (16, 1311119), (29, 723376), (58, 361688), (116, 180844), (232, 90422), (464, 45211), (841, 24944), (1559, 13456), (1682, 12472), (3118, 6728), (3364, 6236)]