21183708

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1021}}^1$

素因数の和:1067

約数の個数: 96

約数和(自身を含む): 64099840

約数和(自身を除く): 42916132

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 52, 57, 76, 78, 84, 91, 114, 133, 156, 182, 228, 247, 266, 273, 364, 399, 494, 532, 546, 741, 798, 988, 1021, 1092, 1482, 1596, 1729, 2042, 2964, 3063, 3458, 4084, 5187, 6126, 6916, 7147, 10374, 12252, 13273, 14294, 19399, 20748, 21441, 26546, 28588, 38798, 39819, 42882, 53092, 58197, 77596, 79638, 85764, 92911, 116394, 135793, 159276, 185822, 232788, 252187, 271586, 278733, 371644, 407379, 504374, 543172, 557466, 756561, 814758, 1008748, 1114932, 1513122, 1629516, 1765309, 3026244, 3530618, 5295927, 7061236, 10591854, 21183708]

約数ペア:

[(1, 21183708), (2, 10591854), (3, 7061236), (4, 5295927), (6, 3530618), (7, 3026244), (12, 1765309), (13, 1629516), (14, 1513122), (19, 1114932), (21, 1008748), (26, 814758), (28, 756561), (38, 557466), (39, 543172), (42, 504374), (52, 407379), (57, 371644), (76, 278733), (78, 271586), (84, 252187), (91, 232788), (114, 185822), (133, 159276), (156, 135793), (182, 116394), (228, 92911), (247, 85764), (266, 79638), (273, 77596), (364, 58197), (399, 53092), (494, 42882), (532, 39819), (546, 38798), (741, 28588), (798, 26546), (988, 21441), (1021, 20748), (1092, 19399), (1482, 14294), (1596, 13273), (1729, 12252), (2042, 10374), (2964, 7147), (3063, 6916), (3458, 6126), (4084, 5187)]