28881251

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{419}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 34003200

約数和(自身を除く): 5121949

約数列:

[1, 7, 43, 229, 301, 419, 1603, 2933, 9847, 18017, 68929, 95951, 126119, 671657, 4125893, 28881251]

約数ペア:

[(1, 28881251), (7, 4125893), (43, 671657), (229, 126119), (301, 95951), (419, 68929), (1603, 18017), (2933, 9847)]