21921212

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1367}}^1$

素因数の和:1601

約数の個数: 24

約数和(自身を含む): 40602240

約数和(自身を除く): 18681028

約数列:

[1, 2, 4, 19, 38, 76, 211, 422, 844, 1367, 2734, 4009, 5468, 8018, 16036, 25973, 51946, 103892, 288437, 576874, 1153748, 5480303, 10960606, 21921212]

約数ペア:

[(1, 21921212), (2, 10960606), (4, 5480303), (19, 1153748), (38, 576874), (76, 288437), (211, 103892), (422, 51946), (844, 25973), (1367, 16036), (2734, 8018), (4009, 5468)]