21168290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 45505152

約数和(自身を除く): 24336862

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 113, 130, 131, 143, 226, 262, 286, 565, 655, 715, 1130, 1243, 1310, 1430, 1441, 1469, 1703, 2486, 2882, 2938, 3406, 6215, 7205, 7345, 8515, 12430, 14410, 14690, 14803, 16159, 17030, 18733, 29606, 32318, 37466, 74015, 80795, 93665, 148030, 161590, 162833, 187330, 192439, 325666, 384878, 814165, 962195, 1628330, 1924390, 2116829, 4233658, 10584145, 21168290]

約数ペア:

[(1, 21168290), (2, 10584145), (5, 4233658), (10, 2116829), (11, 1924390), (13, 1628330), (22, 962195), (26, 814165), (55, 384878), (65, 325666), (110, 192439), (113, 187330), (130, 162833), (131, 161590), (143, 148030), (226, 93665), (262, 80795), (286, 74015), (565, 37466), (655, 32318), (715, 29606), (1130, 18733), (1243, 17030), (1310, 16159), (1430, 14803), (1441, 14690), (1469, 14410), (1703, 12430), (2486, 8515), (2882, 7345), (2938, 7205), (3406, 6215)]