20558476

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{379}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 36771840

約数和(自身を除く): 16213364

約数列:

[1, 2, 4, 71, 142, 191, 284, 379, 382, 758, 764, 1516, 13561, 26909, 27122, 53818, 54244, 72389, 107636, 144778, 289556, 5139619, 10279238, 20558476]

約数ペア:

[(1, 20558476), (2, 10279238), (4, 5139619), (71, 289556), (142, 144778), (191, 107636), (284, 72389), (379, 54244), (382, 53818), (758, 27122), (764, 26909), (1516, 13561)]