19898172

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{281}}^2$

素因数の和:579

約数の個数: 54

約数和(自身を含む): 57688904

約数和(自身を除く): 37790732

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 281, 562, 843, 1124, 1686, 1967, 2529, 3372, 3934, 5058, 5901, 7868, 10116, 11802, 17703, 23604, 35406, 70812, 78961, 157922, 236883, 315844, 473766, 552727, 710649, 947532, 1105454, 1421298, 1658181, 2210908, 2842596, 3316362, 4974543, 6632724, 9949086, 19898172]

約数ペア:

[(1, 19898172), (2, 9949086), (3, 6632724), (4, 4974543), (6, 3316362), (7, 2842596), (9, 2210908), (12, 1658181), (14, 1421298), (18, 1105454), (21, 947532), (28, 710649), (36, 552727), (42, 473766), (63, 315844), (84, 236883), (126, 157922), (252, 78961), (281, 70812), (562, 35406), (843, 23604), (1124, 17703), (1686, 11802), (1967, 10116), (2529, 7868), (3372, 5901), (3934, 5058)]