18854384

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{569}}^1$

素因数の和:705

約数の個数: 40

約数和(自身を含む): 38874000

約数和(自身を除く): 20019616

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 109, 152, 218, 304, 436, 569, 872, 1138, 1744, 2071, 2276, 4142, 4552, 8284, 9104, 10811, 16568, 21622, 33136, 43244, 62021, 86488, 124042, 172976, 248084, 496168, 992336, 1178399, 2356798, 4713596, 9427192, 18854384]

約数ペア:

[(1, 18854384), (2, 9427192), (4, 4713596), (8, 2356798), (16, 1178399), (19, 992336), (38, 496168), (76, 248084), (109, 172976), (152, 124042), (218, 86488), (304, 62021), (436, 43244), (569, 33136), (872, 21622), (1138, 16568), (1744, 10811), (2071, 9104), (2276, 8284), (4142, 4552)]