221510128

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{63799}}^1$

素因数の和:63845

約数の個数: 40

約数和(自身を含む): 506316800

約数和(自身を除く): 284806672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 63799, 127598, 255196, 446593, 510392, 893186, 1020784, 1786372, 1977769, 3572744, 3955538, 7145488, 7911076, 13844383, 15822152, 27688766, 31644304, 55377532, 110755064, 221510128]

約数ペア:

[(1, 221510128), (2, 110755064), (4, 55377532), (7, 31644304), (8, 27688766), (14, 15822152), (16, 13844383), (28, 7911076), (31, 7145488), (56, 3955538), (62, 3572744), (112, 1977769), (124, 1786372), (217, 1020784), (248, 893186), (434, 510392), (496, 446593), (868, 255196), (1736, 127598), (3472, 63799)]