19980202

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1303}}^1$

素因数の和:1374

約数の個数: 32

約数和(自身を含む): 35489664

約数和(自身を除く): 15509462

約数列:

[1, 2, 11, 17, 22, 34, 41, 82, 187, 374, 451, 697, 902, 1303, 1394, 2606, 7667, 14333, 15334, 22151, 28666, 44302, 53423, 106846, 243661, 487322, 587653, 908191, 1175306, 1816382, 9990101, 19980202]

約数ペア:

[(1, 19980202), (2, 9990101), (11, 1816382), (17, 1175306), (22, 908191), (34, 587653), (41, 487322), (82, 243661), (187, 106846), (374, 53423), (451, 44302), (697, 28666), (902, 22151), (1303, 15334), (1394, 14333), (2606, 7667)]