20578932

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1$

素因数の和:509

約数の個数: 72

約数和(自身を含む): 57281952

約数和(自身を除く): 36703020

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 157, 198, 314, 331, 396, 471, 628, 662, 942, 993, 1324, 1413, 1727, 1884, 1986, 2826, 2979, 3454, 3641, 3972, 5181, 5652, 5958, 6908, 7282, 10362, 10923, 11916, 14564, 15543, 20724, 21846, 31086, 32769, 43692, 51967, 62172, 65538, 103934, 131076, 155901, 207868, 311802, 467703, 571637, 623604, 935406, 1143274, 1714911, 1870812, 2286548, 3429822, 5144733, 6859644, 10289466, 20578932]

約数ペア:

[(1, 20578932), (2, 10289466), (3, 6859644), (4, 5144733), (6, 3429822), (9, 2286548), (11, 1870812), (12, 1714911), (18, 1143274), (22, 935406), (33, 623604), (36, 571637), (44, 467703), (66, 311802), (99, 207868), (132, 155901), (157, 131076), (198, 103934), (314, 65538), (331, 62172), (396, 51967), (471, 43692), (628, 32769), (662, 31086), (942, 21846), (993, 20724), (1324, 15543), (1413, 14564), (1727, 11916), (1884, 10923), (1986, 10362), (2826, 7282), (2979, 6908), (3454, 5958), (3641, 5652), (3972, 5181)]