18668648

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 35904000

約数和(自身を除く): 17235352

約数列:

[1, 2, 4, 8, 79, 109, 158, 218, 271, 316, 436, 542, 632, 872, 1084, 2168, 8611, 17222, 21409, 29539, 34444, 42818, 59078, 68888, 85636, 118156, 171272, 236312, 2333581, 4667162, 9334324, 18668648]

約数ペア:

[(1, 18668648), (2, 9334324), (4, 4667162), (8, 2333581), (79, 236312), (109, 171272), (158, 118156), (218, 85636), (271, 68888), (316, 59078), (436, 42818), (542, 34444), (632, 29539), (872, 21409), (1084, 17222), (2168, 8611)]