21839300

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{4457}}^1$

素因数の和:4485

約数の個数: 54

約数和(自身を含む): 55141002

約数和(自身を除く): 33301702

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4457, 4900, 8914, 17828, 22285, 31199, 44570, 62398, 89140, 111425, 124796, 155995, 218393, 222850, 311990, 436786, 445700, 623980, 779975, 873572, 1091965, 1559950, 2183930, 3119900, 4367860, 5459825, 10919650, 21839300]

約数ペア:

[(1, 21839300), (2, 10919650), (4, 5459825), (5, 4367860), (7, 3119900), (10, 2183930), (14, 1559950), (20, 1091965), (25, 873572), (28, 779975), (35, 623980), (49, 445700), (50, 436786), (70, 311990), (98, 222850), (100, 218393), (140, 155995), (175, 124796), (196, 111425), (245, 89140), (350, 62398), (490, 44570), (700, 31199), (980, 22285), (1225, 17828), (2450, 8914), (4457, 4900)]