18642951

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{719}}^1$

素因数の和:835

約数の個数: 24

約数和(自身を含む): 28005120

約数和(自身を除く): 9362169

約数列:

[1, 3, 9, 43, 67, 129, 201, 387, 603, 719, 2157, 2881, 6471, 8643, 25929, 30917, 48173, 92751, 144519, 278253, 433557, 2071439, 6214317, 18642951]

約数ペア:

[(1, 18642951), (3, 6214317), (9, 2071439), (43, 433557), (67, 278253), (129, 144519), (201, 92751), (387, 48173), (603, 30917), (719, 25929), (2157, 8643), (2881, 6471)]