21137172

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8677}}^1$

素因数の和:8720

約数の個数: 48

約数和(自身を含む): 58316160

約数和(自身を除く): 37178988

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 84, 87, 116, 174, 203, 348, 406, 609, 812, 1218, 2436, 8677, 17354, 26031, 34708, 52062, 60739, 104124, 121478, 182217, 242956, 251633, 364434, 503266, 728868, 754899, 1006532, 1509798, 1761431, 3019596, 3522862, 5284293, 7045724, 10568586, 21137172]

約数ペア:

[(1, 21137172), (2, 10568586), (3, 7045724), (4, 5284293), (6, 3522862), (7, 3019596), (12, 1761431), (14, 1509798), (21, 1006532), (28, 754899), (29, 728868), (42, 503266), (58, 364434), (84, 251633), (87, 242956), (116, 182217), (174, 121478), (203, 104124), (348, 60739), (406, 52062), (609, 34708), (812, 26031), (1218, 17354), (2436, 8677)]