21982940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6827}}^1$

素因数の和:6866

約数の個数: 48

約数和(自身を含む): 55060992

約数和(自身を除く): 33078052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6827, 13654, 27308, 34135, 47789, 68270, 95578, 136540, 157021, 191156, 238945, 314042, 477890, 628084, 785105, 955780, 1099147, 1570210, 2198294, 3140420, 4396588, 5495735, 10991470, 21982940]

約数ペア:

[(1, 21982940), (2, 10991470), (4, 5495735), (5, 4396588), (7, 3140420), (10, 2198294), (14, 1570210), (20, 1099147), (23, 955780), (28, 785105), (35, 628084), (46, 477890), (70, 314042), (92, 238945), (115, 191156), (140, 157021), (161, 136540), (230, 95578), (322, 68270), (460, 47789), (644, 34135), (805, 27308), (1610, 13654), (3220, 6827)]