19753616

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{359}}^1$

素因数の和:567

約数の個数: 40

約数和(自身を含む): 40622400

約数和(自身を除く): 20868784

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 181, 304, 359, 362, 718, 724, 1436, 1448, 2872, 2896, 3439, 5744, 6821, 6878, 13642, 13756, 27284, 27512, 54568, 55024, 64979, 109136, 129958, 259916, 519832, 1039664, 1234601, 2469202, 4938404, 9876808, 19753616]

約数ペア:

[(1, 19753616), (2, 9876808), (4, 4938404), (8, 2469202), (16, 1234601), (19, 1039664), (38, 519832), (76, 259916), (152, 129958), (181, 109136), (304, 64979), (359, 55024), (362, 54568), (718, 27512), (724, 27284), (1436, 13756), (1448, 13642), (2872, 6878), (2896, 6821), (3439, 5744)]