19391508

素因数分解:

$2^2\times 3^3\times {\mathrm{409}}^1\times {\mathrm{439}}^1$

素因数の和:861

約数の個数: 48

約数和(自身を含む): 50512000

約数和(自身を除く): 31120492

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 409, 439, 818, 878, 1227, 1317, 1636, 1756, 2454, 2634, 3681, 3951, 4908, 5268, 7362, 7902, 11043, 11853, 14724, 15804, 22086, 23706, 44172, 47412, 179551, 359102, 538653, 718204, 1077306, 1615959, 2154612, 3231918, 4847877, 6463836, 9695754, 19391508]

約数ペア:

[(1, 19391508), (2, 9695754), (3, 6463836), (4, 4847877), (6, 3231918), (9, 2154612), (12, 1615959), (18, 1077306), (27, 718204), (36, 538653), (54, 359102), (108, 179551), (409, 47412), (439, 44172), (818, 23706), (878, 22086), (1227, 15804), (1317, 14724), (1636, 11853), (1756, 11043), (2454, 7902), (2634, 7362), (3681, 5268), (3951, 4908)]