201215828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{51383}}^1$

素因数の和:51487

約数の個数: 24

約数和(自身を含む): 388463040

約数和(自身を除く): 187247212

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 51383, 102766, 205532, 565213, 1130426, 2260852, 4573087, 9146174, 18292348, 50303957, 100607914, 201215828]

約数ペア:

[(1, 201215828), (2, 100607914), (4, 50303957), (11, 18292348), (22, 9146174), (44, 4573087), (89, 2260852), (178, 1130426), (356, 565213), (979, 205532), (1958, 102766), (3916, 51383)]