21000658178

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{55411}}^1$

素因数の和:55658

約数の個数: 32

約数和(自身を含む): 34039813248

約数和(自身を除く): 13039155070

約数列:

[1, 2, 17, 34, 71, 142, 157, 314, 1207, 2414, 2669, 5338, 11147, 22294, 55411, 110822, 189499, 378998, 941987, 1883974, 3934181, 7868362, 8699527, 17399054, 66881077, 133762154, 147891959, 295783918, 617666417, 1235332834, 10500329089, 21000658178]

約数ペア:

[(1, 21000658178), (2, 10500329089), (17, 1235332834), (34, 617666417), (71, 295783918), (142, 147891959), (157, 133762154), (314, 66881077), (1207, 17399054), (2414, 8699527), (2669, 7868362), (5338, 3934181), (11147, 1883974), (22294, 941987), (55411, 378998), (110822, 189499)]