21481950

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:562

約数の個数: 96

約数和(自身を含む): 62496000

約数和(自身を除く): 41014050

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 41, 42, 50, 70, 75, 82, 105, 123, 150, 175, 205, 210, 246, 287, 350, 410, 499, 525, 574, 615, 861, 998, 1025, 1050, 1230, 1435, 1497, 1722, 2050, 2495, 2870, 2994, 3075, 3493, 4305, 4990, 6150, 6986, 7175, 7485, 8610, 10479, 12475, 14350, 14970, 17465, 20459, 20958, 21525, 24950, 34930, 37425, 40918, 43050, 52395, 61377, 74850, 87325, 102295, 104790, 122754, 143213, 174650, 204590, 261975, 286426, 306885, 429639, 511475, 523950, 613770, 716065, 859278, 1022950, 1432130, 1534425, 2148195, 3068850, 3580325, 4296390, 7160650, 10740975, 21481950]

約数ペア:

[(1, 21481950), (2, 10740975), (3, 7160650), (5, 4296390), (6, 3580325), (7, 3068850), (10, 2148195), (14, 1534425), (15, 1432130), (21, 1022950), (25, 859278), (30, 716065), (35, 613770), (41, 523950), (42, 511475), (50, 429639), (70, 306885), (75, 286426), (82, 261975), (105, 204590), (123, 174650), (150, 143213), (175, 122754), (205, 104790), (210, 102295), (246, 87325), (287, 74850), (350, 61377), (410, 52395), (499, 43050), (525, 40918), (574, 37425), (615, 34930), (861, 24950), (998, 21525), (1025, 20958), (1050, 20459), (1230, 17465), (1435, 14970), (1497, 14350), (1722, 12475), (2050, 10479), (2495, 8610), (2870, 7485), (2994, 7175), (3075, 6986), (3493, 6150), (4305, 4990)]