20621904

素因数分解:

$2^4\times 3^1\times {\mathrm{61}}^1\times {\mathrm{7043}}^1$

素因数の和:7115

約数の個数: 40

約数和(自身を含む): 54154272

約数和(自身を除く): 33532368

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 61, 122, 183, 244, 366, 488, 732, 976, 1464, 2928, 7043, 14086, 21129, 28172, 42258, 56344, 84516, 112688, 169032, 338064, 429623, 859246, 1288869, 1718492, 2577738, 3436984, 5155476, 6873968, 10310952, 20621904]

約数ペア:

[(1, 20621904), (2, 10310952), (3, 6873968), (4, 5155476), (6, 3436984), (8, 2577738), (12, 1718492), (16, 1288869), (24, 859246), (48, 429623), (61, 338064), (122, 169032), (183, 112688), (244, 84516), (366, 56344), (488, 42258), (732, 28172), (976, 21129), (1464, 14086), (2928, 7043)]