21517300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{521}}^1$

素因数の和:601

約数の個数: 72

約数和(自身を含む): 54371520

約数和(自身を除く): 32854220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 59, 70, 100, 118, 140, 175, 236, 295, 350, 413, 521, 590, 700, 826, 1042, 1180, 1475, 1652, 2065, 2084, 2605, 2950, 3647, 4130, 5210, 5900, 7294, 8260, 10325, 10420, 13025, 14588, 18235, 20650, 26050, 30739, 36470, 41300, 52100, 61478, 72940, 91175, 122956, 153695, 182350, 215173, 307390, 364700, 430346, 614780, 768475, 860692, 1075865, 1536950, 2151730, 3073900, 4303460, 5379325, 10758650, 21517300]

約数ペア:

[(1, 21517300), (2, 10758650), (4, 5379325), (5, 4303460), (7, 3073900), (10, 2151730), (14, 1536950), (20, 1075865), (25, 860692), (28, 768475), (35, 614780), (50, 430346), (59, 364700), (70, 307390), (100, 215173), (118, 182350), (140, 153695), (175, 122956), (236, 91175), (295, 72940), (350, 61478), (413, 52100), (521, 41300), (590, 36470), (700, 30739), (826, 26050), (1042, 20650), (1180, 18235), (1475, 14588), (1652, 13025), (2065, 10420), (2084, 10325), (2605, 8260), (2950, 7294), (3647, 5900), (4130, 5210)]