18969704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{1019}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 38556000

約数和(自身を除く): 19586296

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 179, 358, 716, 1019, 1432, 2038, 2327, 4076, 4654, 8152, 9308, 13247, 18616, 26494, 52988, 105976, 182401, 364802, 729604, 1459208, 2371213, 4742426, 9484852, 18969704]

約数ペア:

[(1, 18969704), (2, 9484852), (4, 4742426), (8, 2371213), (13, 1459208), (26, 729604), (52, 364802), (104, 182401), (179, 105976), (358, 52988), (716, 26494), (1019, 18616), (1432, 13247), (2038, 9308), (2327, 8152), (4076, 4654)]