21045640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6833}}^1$

素因数の和:6862

約数の個数: 64

約数和(自身を含む): 59045760

約数和(自身を除く): 38000120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6833, 13666, 27332, 34165, 47831, 54664, 68330, 75163, 95662, 136660, 150326, 191324, 239155, 273320, 300652, 375815, 382648, 478310, 526141, 601304, 751630, 956620, 1052282, 1503260, 1913240, 2104564, 2630705, 3006520, 4209128, 5261410, 10522820, 21045640]

約数ペア:

[(1, 21045640), (2, 10522820), (4, 5261410), (5, 4209128), (7, 3006520), (8, 2630705), (10, 2104564), (11, 1913240), (14, 1503260), (20, 1052282), (22, 956620), (28, 751630), (35, 601304), (40, 526141), (44, 478310), (55, 382648), (56, 375815), (70, 300652), (77, 273320), (88, 239155), (110, 191324), (140, 150326), (154, 136660), (220, 95662), (280, 75163), (308, 68330), (385, 54664), (440, 47831), (616, 34165), (770, 27332), (1540, 13666), (3080, 6833)]