18689384

素因数分解:

$2^3\times 7^5\times {\mathrm{139}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 41176800

約数和(自身を除く): 22487416

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 139, 196, 278, 343, 392, 556, 686, 973, 1112, 1372, 1946, 2401, 2744, 3892, 4802, 6811, 7784, 9604, 13622, 16807, 19208, 27244, 33614, 47677, 54488, 67228, 95354, 134456, 190708, 333739, 381416, 667478, 1334956, 2336173, 2669912, 4672346, 9344692, 18689384]

約数ペア:

[(1, 18689384), (2, 9344692), (4, 4672346), (7, 2669912), (8, 2336173), (14, 1334956), (28, 667478), (49, 381416), (56, 333739), (98, 190708), (139, 134456), (196, 95354), (278, 67228), (343, 54488), (392, 47677), (556, 33614), (686, 27244), (973, 19208), (1112, 16807), (1372, 13622), (1946, 9604), (2401, 7784), (2744, 6811), (3892, 4802)]