20718726

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15913}}^1$

素因数の和:15956

約数の個数: 32

約数和(自身を含む): 48887808

約数和(自身を除く): 28169082

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 217, 434, 651, 1302, 15913, 31826, 47739, 95478, 111391, 222782, 334173, 493303, 668346, 986606, 1479909, 2959818, 3453121, 6906242, 10359363, 20718726]

約数ペア:

[(1, 20718726), (2, 10359363), (3, 6906242), (6, 3453121), (7, 2959818), (14, 1479909), (21, 986606), (31, 668346), (42, 493303), (62, 334173), (93, 222782), (186, 111391), (217, 95478), (434, 47739), (651, 31826), (1302, 15913)]