21175196

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{751}}^1$

素因数の和:834

約数の個数: 48

約数和(自身を含む): 45480960

約数和(自身を除く): 24305764

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 53, 76, 106, 133, 212, 266, 371, 532, 742, 751, 1007, 1484, 1502, 2014, 3004, 4028, 5257, 7049, 10514, 14098, 14269, 21028, 28196, 28538, 39803, 57076, 79606, 99883, 159212, 199766, 278621, 399532, 557242, 756257, 1114484, 1512514, 3025028, 5293799, 10587598, 21175196]

約数ペア:

[(1, 21175196), (2, 10587598), (4, 5293799), (7, 3025028), (14, 1512514), (19, 1114484), (28, 756257), (38, 557242), (53, 399532), (76, 278621), (106, 199766), (133, 159212), (212, 99883), (266, 79606), (371, 57076), (532, 39803), (742, 28538), (751, 28196), (1007, 21028), (1484, 14269), (1502, 14098), (2014, 10514), (3004, 7049), (4028, 5257)]