20471835

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{659}}^1$

素因数の和:795

約数の個数: 32

約数和(自身を含む): 34848000

約数和(自身を除く): 14376165

約数列:

[1, 3, 5, 15, 19, 57, 95, 109, 285, 327, 545, 659, 1635, 1977, 2071, 3295, 6213, 9885, 10355, 12521, 31065, 37563, 62605, 71831, 187815, 215493, 359155, 1077465, 1364789, 4094367, 6823945, 20471835]

約数ペア:

[(1, 20471835), (3, 6823945), (5, 4094367), (15, 1364789), (19, 1077465), (57, 359155), (95, 215493), (109, 187815), (285, 71831), (327, 62605), (545, 37563), (659, 31065), (1635, 12521), (1977, 10355), (2071, 9885), (3295, 6213)]