21816180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6379}}^1$

素因数の和:6413

約数の個数: 72

約数和(自身を含む): 69669600

約数和(自身を除く): 47853420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6379, 12758, 19137, 25516, 31895, 38274, 57411, 63790, 76548, 95685, 114822, 121201, 127580, 191370, 229644, 242402, 287055, 363603, 382740, 484804, 574110, 606005, 727206, 1090809, 1148220, 1212010, 1454412, 1818015, 2181618, 2424020, 3636030, 4363236, 5454045, 7272060, 10908090, 21816180]

約数ペア:

[(1, 21816180), (2, 10908090), (3, 7272060), (4, 5454045), (5, 4363236), (6, 3636030), (9, 2424020), (10, 2181618), (12, 1818015), (15, 1454412), (18, 1212010), (19, 1148220), (20, 1090809), (30, 727206), (36, 606005), (38, 574110), (45, 484804), (57, 382740), (60, 363603), (76, 287055), (90, 242402), (95, 229644), (114, 191370), (171, 127580), (180, 121201), (190, 114822), (228, 95685), (285, 76548), (342, 63790), (380, 57411), (570, 38274), (684, 31895), (855, 25516), (1140, 19137), (1710, 12758), (3420, 6379)]