21419056

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{317}}^1$

素因数の和:469

約数の個数: 40

約数和(自身を含む): 43059744

約数和(自身を除く): 21640688

約数列:

[1, 2, 4, 8, 16, 41, 82, 103, 164, 206, 317, 328, 412, 634, 656, 824, 1268, 1648, 2536, 4223, 5072, 8446, 12997, 16892, 25994, 32651, 33784, 51988, 65302, 67568, 103976, 130604, 207952, 261208, 522416, 1338691, 2677382, 5354764, 10709528, 21419056]

約数ペア:

[(1, 21419056), (2, 10709528), (4, 5354764), (8, 2677382), (16, 1338691), (41, 522416), (82, 261208), (103, 207952), (164, 130604), (206, 103976), (317, 67568), (328, 65302), (412, 51988), (634, 33784), (656, 32651), (824, 25994), (1268, 16892), (1648, 12997), (2536, 8446), (4223, 5072)]