19898889195

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{434521}}^1$

素因数の和:434643

約数の個数: 32

約数和(自身を含む): 33037576704

約数和(自身を除く): 13138687509

約数列:

[1, 3, 5, 15, 43, 71, 129, 213, 215, 355, 645, 1065, 3053, 9159, 15265, 45795, 434521, 1303563, 2172605, 6517815, 18684403, 30850991, 56053209, 92552973, 93422015, 154254955, 280266045, 462764865, 1326592613, 3979777839, 6632963065, 19898889195]

約数ペア:

[(1, 19898889195), (3, 6632963065), (5, 3979777839), (15, 1326592613), (43, 462764865), (71, 280266045), (129, 154254955), (213, 93422015), (215, 92552973), (355, 56053209), (645, 30850991), (1065, 18684403), (3053, 6517815), (9159, 2172605), (15265, 1303563), (45795, 434521)]