21657300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{10313}}^1$

素因数の和:10337

約数の個数: 72

約数和(自身を含む): 71620416

約数和(自身を除く): 49963116

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 10313, 20626, 30939, 41252, 51565, 61878, 72191, 103130, 123756, 144382, 154695, 206260, 216573, 257825, 288764, 309390, 360955, 433146, 515650, 618780, 721910, 773475, 866292, 1031300, 1082865, 1443820, 1546950, 1804775, 2165730, 3093900, 3609550, 4331460, 5414325, 7219100, 10828650, 21657300]

約数ペア:

[(1, 21657300), (2, 10828650), (3, 7219100), (4, 5414325), (5, 4331460), (6, 3609550), (7, 3093900), (10, 2165730), (12, 1804775), (14, 1546950), (15, 1443820), (20, 1082865), (21, 1031300), (25, 866292), (28, 773475), (30, 721910), (35, 618780), (42, 515650), (50, 433146), (60, 360955), (70, 309390), (75, 288764), (84, 257825), (100, 216573), (105, 206260), (140, 154695), (150, 144382), (175, 123756), (210, 103130), (300, 72191), (350, 61878), (420, 51565), (525, 41252), (700, 30939), (1050, 20626), (2100, 10313)]