20992470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4457}}^1$

素因数の和:4624

約数の個数: 32

約数和(自身を含む): 50714208

約数和(自身を除く): 29721738

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 157, 314, 471, 785, 942, 1570, 2355, 4457, 4710, 8914, 13371, 22285, 26742, 44570, 66855, 133710, 699749, 1399498, 2099247, 3498745, 4198494, 6997490, 10496235, 20992470]

約数ペア:

[(1, 20992470), (2, 10496235), (3, 6997490), (5, 4198494), (6, 3498745), (10, 2099247), (15, 1399498), (30, 699749), (157, 133710), (314, 66855), (471, 44570), (785, 26742), (942, 22285), (1570, 13371), (2355, 8914), (4457, 4710)]