21712740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3041}}^1$

素因数の和:3077

約数の個数: 96

約数和(自身を含む): 73592064

約数和(自身を除く): 51879324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 3041, 3570, 6082, 7140, 9123, 12164, 15205, 18246, 21287, 30410, 36492, 42574, 45615, 51697, 60820, 63861, 85148, 91230, 103394, 106435, 127722, 155091, 182460, 206788, 212870, 255444, 258485, 310182, 319305, 361879, 425740, 516970, 620364, 638610, 723758, 775455, 1033940, 1085637, 1277220, 1447516, 1550910, 1809395, 2171274, 3101820, 3618790, 4342548, 5428185, 7237580, 10856370, 21712740]

約数ペア:

[(1, 21712740), (2, 10856370), (3, 7237580), (4, 5428185), (5, 4342548), (6, 3618790), (7, 3101820), (10, 2171274), (12, 1809395), (14, 1550910), (15, 1447516), (17, 1277220), (20, 1085637), (21, 1033940), (28, 775455), (30, 723758), (34, 638610), (35, 620364), (42, 516970), (51, 425740), (60, 361879), (68, 319305), (70, 310182), (84, 258485), (85, 255444), (102, 212870), (105, 206788), (119, 182460), (140, 155091), (170, 127722), (204, 106435), (210, 103394), (238, 91230), (255, 85148), (340, 63861), (357, 60820), (420, 51697), (476, 45615), (510, 42574), (595, 36492), (714, 30410), (1020, 21287), (1190, 18246), (1428, 15205), (1785, 12164), (2380, 9123), (3041, 7140), (3570, 6082)]