19280426

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 32788800

約数和(自身を除く): 13508374

約数列:

[1, 2, 11, 22, 43, 86, 89, 178, 229, 458, 473, 946, 979, 1958, 2519, 3827, 5038, 7654, 9847, 19694, 20381, 40762, 42097, 84194, 108317, 216634, 224191, 448382, 876383, 1752766, 9640213, 19280426]

約数ペア:

[(1, 19280426), (2, 9640213), (11, 1752766), (22, 876383), (43, 448382), (86, 224191), (89, 216634), (178, 108317), (229, 84194), (458, 42097), (473, 40762), (946, 20381), (979, 19694), (1958, 9847), (2519, 7654), (3827, 5038)]