18891772

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1163}}^1$

素因数の和:1329

約数の個数: 24

約数和(自身を含む): 34417152

約数和(自身を除く): 15525380

約数列:

[1, 2, 4, 31, 62, 124, 131, 262, 524, 1163, 2326, 4061, 4652, 8122, 16244, 36053, 72106, 144212, 152353, 304706, 609412, 4722943, 9445886, 18891772]

約数ペア:

[(1, 18891772), (2, 9445886), (4, 4722943), (31, 609412), (62, 304706), (124, 152353), (131, 144212), (262, 72106), (524, 36053), (1163, 16244), (2326, 8122), (4061, 4652)]