18518236

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1303}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 39432960

約数和(自身を除く): 20914724

約数列:

[1, 2, 4, 11, 17, 19, 22, 34, 38, 44, 68, 76, 187, 209, 323, 374, 418, 646, 748, 836, 1292, 1303, 2606, 3553, 5212, 7106, 14212, 14333, 22151, 24757, 28666, 44302, 49514, 57332, 88604, 99028, 243661, 272327, 420869, 487322, 544654, 841738, 974644, 1089308, 1683476, 4629559, 9259118, 18518236]

約数ペア:

[(1, 18518236), (2, 9259118), (4, 4629559), (11, 1683476), (17, 1089308), (19, 974644), (22, 841738), (34, 544654), (38, 487322), (44, 420869), (68, 272327), (76, 243661), (187, 99028), (209, 88604), (323, 57332), (374, 49514), (418, 44302), (646, 28666), (748, 24757), (836, 22151), (1292, 14333), (1303, 14212), (2606, 7106), (3553, 5212)]