21829020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21401}}^1$

素因数の和:21430

約数の個数: 48

約数和(自身を含む): 64719648

約数和(自身を除く): 42890628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21401, 42802, 64203, 85604, 107005, 128406, 214010, 256812, 321015, 363817, 428020, 642030, 727634, 1091451, 1284060, 1455268, 1819085, 2182902, 3638170, 4365804, 5457255, 7276340, 10914510, 21829020]

約数ペア:

[(1, 21829020), (2, 10914510), (3, 7276340), (4, 5457255), (5, 4365804), (6, 3638170), (10, 2182902), (12, 1819085), (15, 1455268), (17, 1284060), (20, 1091451), (30, 727634), (34, 642030), (51, 428020), (60, 363817), (68, 321015), (85, 256812), (102, 214010), (170, 128406), (204, 107005), (255, 85604), (340, 64203), (510, 42802), (1020, 21401)]