21691728

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{8861}}^1$

素因数の和:8892

約数の個数: 60

約数和(自身を含む): 64284948

約数和(自身を除く): 42593220

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 34, 36, 48, 51, 68, 72, 102, 136, 144, 153, 204, 272, 306, 408, 612, 816, 1224, 2448, 8861, 17722, 26583, 35444, 53166, 70888, 79749, 106332, 141776, 150637, 159498, 212664, 301274, 318996, 425328, 451911, 602548, 637992, 903822, 1205096, 1275984, 1355733, 1807644, 2410192, 2711466, 3615288, 5422932, 7230576, 10845864, 21691728]

約数ペア:

[(1, 21691728), (2, 10845864), (3, 7230576), (4, 5422932), (6, 3615288), (8, 2711466), (9, 2410192), (12, 1807644), (16, 1355733), (17, 1275984), (18, 1205096), (24, 903822), (34, 637992), (36, 602548), (48, 451911), (51, 425328), (68, 318996), (72, 301274), (102, 212664), (136, 159498), (144, 150637), (153, 141776), (204, 106332), (272, 79749), (306, 70888), (408, 53166), (612, 35444), (816, 26583), (1224, 17722), (2448, 8861)]