21204200

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1093}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 49853580

約数和(自身を除く): 28649380

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 776, 970, 1093, 1940, 2186, 2425, 3880, 4372, 4850, 5465, 8744, 9700, 10930, 19400, 21860, 27325, 43720, 54650, 106021, 109300, 212042, 218600, 424084, 530105, 848168, 1060210, 2120420, 2650525, 4240840, 5301050, 10602100, 21204200]

約数ペア:

[(1, 21204200), (2, 10602100), (4, 5301050), (5, 4240840), (8, 2650525), (10, 2120420), (20, 1060210), (25, 848168), (40, 530105), (50, 424084), (97, 218600), (100, 212042), (194, 109300), (200, 106021), (388, 54650), (485, 43720), (776, 27325), (970, 21860), (1093, 19400), (1940, 10930), (2186, 9700), (2425, 8744), (3880, 5465), (4372, 4850)]