18067984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:679

約数の個数: 40

約数和(自身を含む): 38435040

約数和(自身を除く): 20367056

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 251, 409, 502, 818, 1004, 1636, 2008, 2761, 3272, 4016, 4499, 5522, 6544, 8998, 11044, 17996, 22088, 35992, 44176, 71984, 102659, 205318, 410636, 821272, 1129249, 1642544, 2258498, 4516996, 9033992, 18067984]

約数ペア:

[(1, 18067984), (2, 9033992), (4, 4516996), (8, 2258498), (11, 1642544), (16, 1129249), (22, 821272), (44, 410636), (88, 205318), (176, 102659), (251, 71984), (409, 44176), (502, 35992), (818, 22088), (1004, 17996), (1636, 11044), (2008, 8998), (2761, 6544), (3272, 5522), (4016, 4499)]