21796530

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{383}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 60162048

約数和(自身を除く): 38365518

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 271, 383, 542, 766, 813, 1149, 1355, 1626, 1897, 1915, 2298, 2681, 2710, 3794, 3830, 4065, 5362, 5691, 5745, 8043, 8130, 9485, 11382, 11490, 13405, 16086, 18970, 26810, 28455, 40215, 56910, 80430, 103793, 207586, 311379, 518965, 622758, 726551, 1037930, 1453102, 1556895, 2179653, 3113790, 3632755, 4359306, 7265510, 10898265, 21796530]

約数ペア:

[(1, 21796530), (2, 10898265), (3, 7265510), (5, 4359306), (6, 3632755), (7, 3113790), (10, 2179653), (14, 1556895), (15, 1453102), (21, 1037930), (30, 726551), (35, 622758), (42, 518965), (70, 311379), (105, 207586), (210, 103793), (271, 80430), (383, 56910), (542, 40215), (766, 28455), (813, 26810), (1149, 18970), (1355, 16086), (1626, 13405), (1897, 11490), (1915, 11382), (2298, 9485), (2681, 8130), (2710, 8043), (3794, 5745), (3830, 5691), (4065, 5362)]