20428744

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6883}}^1$

素因数の和:6949

約数の個数: 32

約数和(自身を含む): 44608320

約数和(自身を除く): 24179576

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 6883, 13766, 27532, 48181, 55064, 96362, 192724, 364799, 385448, 729598, 1459196, 2553593, 2918392, 5107186, 10214372, 20428744]

約数ペア:

[(1, 20428744), (2, 10214372), (4, 5107186), (7, 2918392), (8, 2553593), (14, 1459196), (28, 729598), (53, 385448), (56, 364799), (106, 192724), (212, 96362), (371, 55064), (424, 48181), (742, 27532), (1484, 13766), (2968, 6883)]