21341404

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 44307648

約数和(自身を除く): 22966244

約数列:

[1, 2, 4, 7, 14, 28, 53, 73, 106, 146, 197, 212, 292, 371, 394, 511, 742, 788, 1022, 1379, 1484, 2044, 2758, 3869, 5516, 7738, 10441, 14381, 15476, 20882, 27083, 28762, 41764, 54166, 57524, 73087, 100667, 108332, 146174, 201334, 292348, 402668, 762193, 1524386, 3048772, 5335351, 10670702, 21341404]

約数ペア:

[(1, 21341404), (2, 10670702), (4, 5335351), (7, 3048772), (14, 1524386), (28, 762193), (53, 402668), (73, 292348), (106, 201334), (146, 146174), (197, 108332), (212, 100667), (292, 73087), (371, 57524), (394, 54166), (511, 41764), (742, 28762), (788, 27083), (1022, 20882), (1379, 15476), (1484, 14381), (2044, 10441), (2758, 7738), (3869, 5516)]