21281088

素因数分解:

$2^6\times 3^1\times {\mathrm{271}}^1\times {\mathrm{409}}^1$

素因数の和:695

約数の個数: 56

約数和(自身を含む): 56652160

約数和(自身を除く): 35371072

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192, 271, 409, 542, 813, 818, 1084, 1227, 1626, 1636, 2168, 2454, 3252, 3272, 4336, 4908, 6504, 6544, 8672, 9816, 13008, 13088, 17344, 19632, 26016, 26176, 39264, 52032, 78528, 110839, 221678, 332517, 443356, 665034, 886712, 1330068, 1773424, 2660136, 3546848, 5320272, 7093696, 10640544, 21281088]

約数ペア:

[(1, 21281088), (2, 10640544), (3, 7093696), (4, 5320272), (6, 3546848), (8, 2660136), (12, 1773424), (16, 1330068), (24, 886712), (32, 665034), (48, 443356), (64, 332517), (96, 221678), (192, 110839), (271, 78528), (409, 52032), (542, 39264), (813, 26176), (818, 26016), (1084, 19632), (1227, 17344), (1626, 13088), (1636, 13008), (2168, 9816), (2454, 8672), (3252, 6544), (3272, 6504), (4336, 4908)]