21291240050

素因数分解:

$2^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{929}}^1\times {\mathrm{3499}}^1$

素因数の和:4571

約数の個数: 48

約数和(自身を含む): 39958380000

約数和(自身を除く): 18667139950

約数列:

[1, 2, 5, 10, 25, 50, 131, 262, 655, 929, 1310, 1858, 3275, 3499, 4645, 6550, 6998, 9290, 17495, 23225, 34990, 46450, 87475, 121699, 174950, 243398, 458369, 608495, 916738, 1216990, 2291845, 3042475, 3250571, 4583690, 6084950, 6501142, 11459225, 16252855, 22918450, 32505710, 81264275, 162528550, 425824801, 851649602, 2129124005, 4258248010, 10645620025, 21291240050]

約数ペア:

[(1, 21291240050), (2, 10645620025), (5, 4258248010), (10, 2129124005), (25, 851649602), (50, 425824801), (131, 162528550), (262, 81264275), (655, 32505710), (929, 22918450), (1310, 16252855), (1858, 11459225), (3275, 6501142), (3499, 6084950), (4645, 4583690), (6550, 3250571), (6998, 3042475), (9290, 2291845), (17495, 1216990), (23225, 916738), (34990, 608495), (46450, 458369), (87475, 243398), (121699, 174950)]