20477758

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{619}}^1$

素因数の和:784

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 17019842

約数列:

[1, 2, 7, 14, 17, 34, 119, 139, 238, 278, 619, 973, 1238, 1946, 2363, 4333, 4726, 8666, 10523, 16541, 21046, 33082, 73661, 86041, 147322, 172082, 602287, 1204574, 1462697, 2925394, 10238879, 20477758]

約数ペア:

[(1, 20477758), (2, 10238879), (7, 2925394), (14, 1462697), (17, 1204574), (34, 602287), (119, 172082), (139, 147322), (238, 86041), (278, 73661), (619, 33082), (973, 21046), (1238, 16541), (1946, 10523), (2363, 8666), (4333, 4726)]