21813540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{311}}^1$

素因数の和:497

約数の個数: 96

約数和(自身を含む): 70447104

約数和(自身を除く): 48633564

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 167, 210, 311, 334, 420, 501, 622, 668, 835, 933, 1002, 1169, 1244, 1555, 1670, 1866, 2004, 2177, 2338, 2505, 3110, 3340, 3507, 3732, 4354, 4665, 4676, 5010, 5845, 6220, 6531, 7014, 8708, 9330, 10020, 10885, 11690, 13062, 14028, 17535, 18660, 21770, 23380, 26124, 32655, 35070, 43540, 51937, 65310, 70140, 103874, 130620, 155811, 207748, 259685, 311622, 363559, 519370, 623244, 727118, 779055, 1038740, 1090677, 1454236, 1558110, 1817795, 2181354, 3116220, 3635590, 4362708, 5453385, 7271180, 10906770, 21813540]

約数ペア:

[(1, 21813540), (2, 10906770), (3, 7271180), (4, 5453385), (5, 4362708), (6, 3635590), (7, 3116220), (10, 2181354), (12, 1817795), (14, 1558110), (15, 1454236), (20, 1090677), (21, 1038740), (28, 779055), (30, 727118), (35, 623244), (42, 519370), (60, 363559), (70, 311622), (84, 259685), (105, 207748), (140, 155811), (167, 130620), (210, 103874), (311, 70140), (334, 65310), (420, 51937), (501, 43540), (622, 35070), (668, 32655), (835, 26124), (933, 23380), (1002, 21770), (1169, 18660), (1244, 17535), (1555, 14028), (1670, 13062), (1866, 11690), (2004, 10885), (2177, 10020), (2338, 9330), (2505, 8708), (3110, 7014), (3340, 6531), (3507, 6220), (3732, 5845), (4354, 5010), (4665, 4676)]