21078182

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 34715520

約数和(自身を除く): 13637338

約数列:

[1, 2, 19, 38, 41, 82, 83, 163, 166, 326, 779, 1558, 1577, 3097, 3154, 3403, 6194, 6683, 6806, 13366, 13529, 27058, 64657, 126977, 129314, 253954, 257051, 514102, 554689, 1109378, 10539091, 21078182]

約数ペア:

[(1, 21078182), (2, 10539091), (19, 1109378), (38, 554689), (41, 514102), (82, 257051), (83, 253954), (163, 129314), (166, 126977), (326, 64657), (779, 27058), (1558, 13529), (1577, 13366), (3097, 6806), (3154, 6683), (3403, 6194)]