19812945

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1231}}^1$

素因数の和:1305

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 13894575

約数列:

[1, 3, 5, 15, 29, 37, 87, 111, 145, 185, 435, 555, 1073, 1231, 3219, 3693, 5365, 6155, 16095, 18465, 35699, 45547, 107097, 136641, 178495, 227735, 535485, 683205, 1320863, 3962589, 6604315, 19812945]

約数ペア:

[(1, 19812945), (3, 6604315), (5, 3962589), (15, 1320863), (29, 683205), (37, 535485), (87, 227735), (111, 178495), (145, 136641), (185, 107097), (435, 45547), (555, 35699), (1073, 18465), (1231, 16095), (3219, 6155), (3693, 5365)]