17912781

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^2\times {\mathrm{53}}^1$

素因数の和:170

約数の個数: 36

約数和(自身を含む): 28519452

約数和(自身を除く): 10606671

約数列:

[1, 3, 9, 17, 47, 51, 53, 141, 153, 159, 423, 477, 799, 901, 2209, 2397, 2491, 2703, 6627, 7191, 7473, 8109, 19881, 22419, 37553, 42347, 112659, 117077, 127041, 337977, 351231, 381123, 1053693, 1990309, 5970927, 17912781]

約数ペア:

[(1, 17912781), (3, 5970927), (9, 1990309), (17, 1053693), (47, 381123), (51, 351231), (53, 337977), (141, 127041), (153, 117077), (159, 112659), (423, 42347), (477, 37553), (799, 22419), (901, 19881), (2209, 8109), (2397, 7473), (2491, 7191), (2703, 6627)]