21354476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1009}}^1$

素因数の和:1074

約数の個数: 48

約数和(自身を含む): 45134880

約数和(自身を除く): 23780404

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 962, 1009, 1628, 1924, 2018, 4036, 5291, 10582, 11099, 13117, 21164, 22198, 26234, 37333, 44396, 52468, 74666, 144287, 149332, 288574, 410663, 485329, 577148, 821326, 970658, 1642652, 1941316, 5338619, 10677238, 21354476]

約数ペア:

[(1, 21354476), (2, 10677238), (4, 5338619), (11, 1941316), (13, 1642652), (22, 970658), (26, 821326), (37, 577148), (44, 485329), (52, 410663), (74, 288574), (143, 149332), (148, 144287), (286, 74666), (407, 52468), (481, 44396), (572, 37333), (814, 26234), (962, 22198), (1009, 21164), (1628, 13117), (1924, 11099), (2018, 10582), (4036, 5291)]