19623916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 39795840

約数和(自身を除く): 20171924

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 79, 158, 221, 281, 316, 442, 562, 884, 1027, 1124, 1343, 2054, 2686, 3653, 4108, 4777, 5372, 7306, 9554, 14612, 17459, 19108, 22199, 34918, 44398, 62101, 69836, 88796, 124202, 248404, 288587, 377383, 577174, 754766, 1154348, 1509532, 4905979, 9811958, 19623916]

約数ペア:

[(1, 19623916), (2, 9811958), (4, 4905979), (13, 1509532), (17, 1154348), (26, 754766), (34, 577174), (52, 377383), (68, 288587), (79, 248404), (158, 124202), (221, 88796), (281, 69836), (316, 62101), (442, 44398), (562, 34918), (884, 22199), (1027, 19108), (1124, 17459), (1343, 14612), (2054, 9554), (2686, 7306), (3653, 5372), (4108, 4777)]